09. Characoids: tetra relationship (454)

  • Astyanax mexicanus

    27. March 2023

    The tetra Astyanax fasciatus is – if one follows the literature until the recent past – the most widespread fish in America, from the Rio Negro in Argentina to the Rio Grande in Texas. This was doubted early on, but the similarity of these fish was enormous no matter where they were caught. Only a […]

  • Hyphessobrycon jackrobertsi

    10. March 2023

    Already since 1958 a tetra from Peru enjoys great popularity among aquarists under the fantasy name “Hyphessobrycon robertsi”. The males like to impress each other with their enormously extended dorsal fins, which led to the German common name “Sichelsalmler” (= sickle tetra). However, the species was not scientifically named for a long time. In a […]

  • Leporinus sexstriatus

    8. March 2023

    The species-rich genus Leporinus includes some quite large trout-sized species, which are therefore, despite their beauty, rather used as food fish than as ornamental fish. However, there are also species that remain small, such as Leporinus sexstriatus, which reaches only 10-12 cm. This small Leporinus is a zoological rarity, because the species has only a […]

  • Leporellus vittatus

    3. March 2023

    Finally we were once more able to import some of the very rarely offered Leporellus vittatus from the Rio Xingu in Brazil. This extraordinary species attains a length of approximately 25 cm and belongs to the headstander tetra relationship. However, in Leporellus the air bladder is mostly reduced and so the fish live strictly bottom […]

  • Hemigrammus ocellifer WILD

    17. February 2023

    The head & taillight tetra was introduced to Germany as early as 1910 and was also bred soon thereafter, but at that time it was always confused with Hemigrammus ocellifer and determined as such. Only in 1958 Hermann Meinken clarified the mistake and described the old known fish under the name H. ocellifer falsus. The […]

  • Aphyoditeinae gen. sp. Morse tetra

    17. February 2023

    The unusual term “Aphyoditeinae” is a collective term for small-sized tetra genera in the form of a subfamily, which could not be reasonably placed anywhere else. The world-renowned tetra specialist Jaques Géry introduced the term in 1972 in reference to the genus Aphyodite, but not as a subgenus, but as a vaguely defined term Aphyoditeini. […]

  • Carnegiella strigata lg-xlg

    13. February 2023

    The marble hatchetfish (Carnegiella strigata) is a very common, small-bodied surface fish in the wild. Its maximum length is about 4.5 cm. A very dark form (“vesca”) comes from the upper Amazon (Peru) , a lighter, more delicately marked one from the middle Amazon (Brazil). For “vesca” see here: https://www.aquariumglaser.de/en/fish-archives/carnegiella-strigata-vesca-2/ From Brazil we have just […]

  • Lebiasina cf. multimaculata

    6. February 2023

    For the first time we could import large (10-12 cm), beautiful Lebiasina tetras from Colombia. The species identification is not completely sure. The animals originate from the Choco region in the south of Colombia; from there e.g. the emperor tetras Nematobrycon lacortei and N. palmeri are exported regularly, between which also young individuals of Lebiasina […]

  • Hoplocharax goethei

    23. December 2022

    Do you know this tetra? The species is unusual in several respects! First of all there is its strange species name, goethei. Was the species named after our poet prince and universal genius, Johann Wolfgang von Goethe? Unfortunately no. It was dedicated to the controversial eugenicist Charles Matthias Goethe (1875-1966). But that is rather beside […]

  • Cyphocharax multilineatus

    15. December 2022

    This interesting species, which we obtained from Venezuela, belongs to the Curimata-relationship. At the first glimps it reminds one strongly to the well known headstander (Chilodus punctatus), but it can be easily recognized by the black stripe through the eye. Moreover, Cyphocharax swims in a “normal” horizontal way. Cyphocharax feed on Aufwuchs and look the […]

  • Cyphocharax multilineatus

    21. November 2022

    This interesting species, which we obtained from Venezuela, belongs to the Curimata-relationship. At the first glimps it reminds one strongly to the well known headstander (Chilodus punctatus), but it can be easily recognized by the black stripe through the eye. Moreover, Cyphocharax swims in a “normal” horizontal way. Cyphocharax feed on Aufwuchs and look the […]

  • Charax cf. michaeli

    16. November 2022

    There is a conspicuous group of tetras in South America, which we will call “humpback tetras”. They have attracted the interest of researchers since the beginning of fish science (ichthyology), but proved to be a very difficult group in terms of their relationship classification. There are three genera of humpback tetras, which can hardly be […]

  • Nannostomus eques Peru

    24. October 2022

    The tetras of the genus Nannostomus, called pencil fish because of their somewhat stiff swimming style reminiscent of traveling zeppelins, have been among the most popular ornamental fish for decades. They are very beautiful, usually peaceful and remain small. Three species swim at an angle with their heads up: Nannostomus eques, N. britzkii and N. […]

  • Curimatopsis evelynae

    14. October 2022

    The tetras of the genus Curimatopsis are widely distributed in South America. The prettiest species is C. evelynae. Nevertheless, this attractive fish has hardly found its way into aquariums so far. C. evelynae grows to a maximum length of 4 cm. The males can be recognized by their clearly higher caudal peduncle, furthermore the females […]

  • Hypomasticus julii

    7. October 2022

    In 1996, ichthyologists Santos, Jegu, and Lima described an unusual Leporinus from the Rio Xingu and Trombetas as L. julii. The new species is closely related to L. pachycheilus, an extremely color variable Leporinus species. Unique to L. julii, which was named in honor of Júlio Garavello, is the completely underslung mouth and teeth position. […]

  • Thayeria obliqua

    28. September 2022

    Unfortunately the beautiful penguin tetra, Thayeria obliqua, from the upper Amazon is offered only very rarely, in contrast to its cousin T. boehlkei, which can always be found in the trade. In the trade are only offsprings of T. boehlkei; it originates from the Rio Xingu drainage in Brazil. A third species, T. ifati from […]

  • Pyrrhulina spilota

    2. September 2022

    The tetras belonging to the genus Pyrrhulina combine the advantages of two basic groups of ornamental fish. The first group are the schooling species that are always visible and swim merely in the open water: tetras and barbs. The second group has a fascinating behaviour and takes care for the brood: the cichlids and the […]

  • Carnegiella strigata-vesca

    24. August 2022

    The marble hatchetfish (Carnegiella strigata) is the ideal aquarium fish. It remains small (4 cm), is peaceful and has an interesting coloration. The species is widely distributed in South America (Brazil, Ecuador, Bolivia, Colombia, Guyana, Peru and Suriname) and common. That is why it is almost always found in the offer of the ornamental fish […]

  • Hyphessobrycon epicharis

    19. August 2022

    Since the first scientific description of Hyphessobrycon epicharis in 1997, this species is on the dream list of many tetra enthusiasts. Unique feature of this Rosy tetra is the shape of the shoulder spot, which distinguishes it from all other species.  The specimens on which the first description was based came from the upper reaches […]

  • Gymnocorymbus bondi (formerly: G. socolofi)

    19. August 2022

    It has been a long time since we could import the last time the beautiful tetra Gymnocorymbus bondi from Colombia. Very small animals remind strikingly of the Yellow Tetra (Hyphessobrycon bifasciatus), but with increasing growth the shape changes more and more to the one known from Gymnocorymbus. Now we finally got this orangefin tetra once […]

  • Iguanodectes purusii

    3. August 2022

    Four species of the peculiar lizard tetras (Iguanodectes) are imported from time to time: I. spilurus, I. adujai, I. geisleri and I. purusii. But altogether there are eight accepted species and because of the similarity of these fishes and their wide distribution it is not always so sure if the classification of the imports is […]

  • Moenkhausia pittieri

    21. July 2022

    The diamond tetra (Moenkhausia pittieri) has been in the hobby since 1933. The species lives endemically in Lake Valencia in Venezuela, so it only occurs there (including some inflows and outflows). Usually it is only in the trade as offspring, very rarely a few wild catches come in.  At first sight the diamond tetra may […]

  • Ammocryptocharax elegans

    15. July 2022

    There is probably no other freshwater fish that can show such a poisonous green as body coloration as the about 4-5 cm long ground tetra Ammocryptocharax elegans, which we were able to import in small numbers from the Orinoco darinage (Colombia/Venezuela). However, the animals have an extreme color change ability and if they sense danger, […]

  • Myloplus schomburgkii

    15. July 2022

    We have reported about this magnificent tetra more often, e.g. here: https://www.aquariumglaser.de/en/fish-archives/myleus_schomburgkii_en/ and here: https://www.aquariumglaser.de/en/fish-archives/myleus_schomburgkii_wild_en/ Now we have received young sexed animals of the narrow-banded form (species?), 12-15 cm long. The males have developed – in addition to the modified anal fins, typical for sexually mature Myloplus males – black horizontal banding on the ventral […]

  • Pygocentrus ternetzi

    8. July 2022

    To say it right away: yes, we also know that the species P. ternetzi is currently seen by most ichthyologists as a synonym of P. nattereri. This assessment is based on the fact that the “true” Pygocentrus nattereri is the yellow-breasted species from the drainage of the Rio Paraguay (type locality of P. nattereri described […]

  • Paracheirodon innesi Wild

    6. July 2022

    You think these neon tetras are nothing special? They are! They are wild collected ones from Peru! Although for sure 99.99% of all neon tetras traded worldwide are bred ones the species is still very common in the wild. And so every now and then they are sent to Europe as ambassadors of their kind. […]

  • Cynodon gibbus

    4. July 2022

    Only very rarely this “vampire predator tetra” gets into our tanks, because this species is extremely sensitive. So we are of course especially pleased that our specimens are very stable and in good health. We received the animals from Peru. Cynodon gibbus is a predatory fish that feeds on small fish. The species is very […]

  • Nannostomus sp “Super Red“

    24. June 2022

    Since a few weeks pictures of bright red Nannostomus are circulating, which seem to be unnaturally colorful. However, these are actually wild forms from Peru, which are very close to or even identical with the Nannostomus rubrocaudatus (the “Purple”), which is also found there. Like the latter, the novelties have a prominent black spot in […]

  • Hyphessobrycon micropterus

    24. June 2022

    Again we succeeded in importing the unfortunately very rarely offered, very attractive Hyphessobrycon micropterus from the Rio Sao Francisco in Brazil.  For more information please see: https://www.aquariumglaser.de/en/fish-archives/hyphessobrycon-micropterus-2/ The pictures in this post show animals from our current stock (June 2022). For our customers: the animals have code 261853 on our stock list. Please note that […]

  • Leporinus sp. “Strawberry” Bred

    22. June 2022

    So far we could import this probably most beautiful of all Leporinus only once: Leporinus sp. “Strawberry”. That was in the season 2010/2011, in which we managed two imports in small numbers. For these fishes please see https://www.aquariumglaser.de/en/fish-archives/leporinus_sp_strawberry__en/ An interesting side note: five of the fishes imported at that time we got back in top […]

  • Hyphessobrycon socolofi var. Green

    20. June 2022

    Only rather rarely – every few years – and if, then always in the summer months June-July-August, we receive Hyphessobrycon socolofi from Brazil, in which the back shines conspicuously green; besides, the second cherry-red spot on the tail root is colored particularly intensively red with these animals. We have been observing this phenomenon for many […]

  • Tyttocharax cochui

    3. June 2022

    Finally we were able to import once more one of the most charming dwarf tetras at all: Tyttocharax cochui. These very lively and absolutely peaceful blue flashes become only 1.5-2 cm long. The story how T. cochui was discovered is quite interesting.They were imported for the first time in April 1949 to Germany – as […]

  • Triportheus rotundatus

    13. May 2022

    The strange narrow hatchetfish of the genus Triportheus belong to the flying fishes of freshwater. This is already indicated by the mighty pectoral keel with the muscles attached to it and the very long pectoral fins. The fish are predominantly silvery colored and grow to about 15 cm in length, which is why they are […]

  • Hyphessobrycon takasei

    11. May 2022

    The Coffee Bean Tetra is an exceptional species within the so-called Rosy Tetras: no other species has even a hint of such a large shoulder spot. The distribution area of the species is in the lower Amazon basin, the border area between Brazil and French Guyana. There you can find the Coffee Bean Tetra in […]

  • Hyphessobrycon cyanotaenia – extra pretty wild catches

    14. April 2022

    The tetra Hyphessobrycon cyanotaenia was originally imported as “Lapis-Tetra” from Brazil; that was more than 20 years ago (see https://www.aquariumglaser.de/en/?s=cyanotaenia). Since the breeding was successful this beautiful and easy to keep fish is now a common sight in the trade. The origin was mysterious for a long time, because the scientific description was based on […]

  • Hyphessobrycon procyon

    8. April 2022

    One of the still very expensive tetra novelties in the aquarium is the very, very pretty Hyphessobrycon procyon from the Rio Aripuanã in the middle basin of the Rio Madeira. It looks confusingly similar to the kitty tetra, H. heliacus, at first glance. H. procyon and H. heliacus form a species complex together with the […]

  • Hyphessobrycon notidanos “Red Devil

    1. April 2022

    Hyphessobrycon notidanos from the upper drainage of the Rio Tapajós in Brazil, which was scientifically described only in 2006, is apparently a quite multicolored animal. So there is the “Red Devil” with much red in the body and blue iris and the “Yellow Devil” with red iris. Both color forms are said to occur together […]

  • Gasteropelecus sternicla Albino

    1. April 2022

    Hatchetfishes are normally wild caught. They are very common, easy to transport and therefore a welcome addition to the sustainable ornamental fish fishery in Venezuela, Colombia, Peru and Brazil. This is also true for the “Common” Hatchetfish, Gasteropelecus sternicla. For general information on the species, please also see https://www.aquariumglaser.de/fischarchiv/ein-grosser-klassiker-gasteropelecus-sternicla/. For some years now, offspring of […]

  • Hyphessobrycon negodagua

    25. March 2022

    At present the small tetras of South America experience a new boom. Numerous species have been and are being described scientifically. Thus also the ornamental fish collectors leave their beaten tracks and look for these animals, particularly since currently peppered prices are paid for the novelties. Naturally, such a thing only works for a short […]

  • Axelrodia stigmatias

    11. March 2022

    This cute dwarf tetra was described in 1913 from the Rio Madeira, where it was collected near Porto Velho. It is a typical companion fish of the two neon species Paracheirodon axelrodi and P. simulans and, as we know today, occurs throughout the range of the two neons, i.e. in the upper Orinoco and the […]

  • Hyphessobrycon melanostichos

    16. February 2022

    At the moment we can offer magnificent, fully grown bred specimens of Hyphessobrycon melanostichos. Hyphessobrycon melanostichos is very eye-catching due to its bright sky-blue back coloration. The species was scientifically described in 2006 from the Brazilian state of Mato Grosso, where it occurs in the upper drainage of the Rio Tapajós. The species is distinguished […]

  • Catoprion mento

    2. February 2022

    Finally we managed to import Wimple Piranhas (Catoprion mento) once again. In nature C. mento is a scale eater – at least at certain times. In terms of feeding, right now is a good time of year because there are plenty of live white mosquito larvae now, which are an ideal food for Wimple Piranhas. […]

  • Phenacogrammus cf. taeniatus

    28. January 2022

    A new fashion trend in the hobby is emerging: tetras from the Congo! The region was already often in the focus of the hobby, but it was about killifishes or cichlids. The large flock of silver glittering open water species was of less interest. With the discovery of the unbelievably colorful Phenacogrammus sp. “Fantastique” (in […]

  • Copella meinkeni

    26. January 2022

    These beautiful tetras were called Copella nattereri in literature for many years until a scientific study found that C. nattereri is in fact the species previously known as C. nigrofasciata and that the “C. nattereri” from the Orinoco and Rio Negro belong to a scientifically unnamed species called Copella meinkeni. We regularly offer this attractive […]

  • Nematobrycon lacortei

    21. January 2022

    The Rainbow Emperor Tetra (Nematobrycon lacortei) is certainly one of the most attractive tetras in South America. Its home is in western Colombia where it is caught in the catchment area of the Rio San Juan. Males and females can be easily distinguished by the color of the iris. Already in small juveniles the males […]

  • Myloplus torquatus

    21. January 2022

    From Venezuela we received very nice Myloplus torquatus. The up to approx. 25 cm long species is scientifically known for a very long time (since 1858) and in the course of time it was already assigned to the genera Myletes and Myleus. A very good recognition feature is the black fringe in the caudal fin, […]

  • Hyphessobrycon dorsalis

    21. January 2022

    Tetras, which – as Hans-Georg Evers so aptly put it – are magnificently white wine colored, have a hard time in aquarists. In the dealer’s tank there is usually nothing to be seen of the discreet colors and why, many ask, should one buy colorless fish when there are so many colorful species? This opinion […]

  • Sartor respectus

    4. January 2022

    From the Rio Xingu we could import the probably strangest of all headstander: Sartor respectus. Unfortunately there were only two specimens, which one of our employees acquired. Nevertheless we did not want to withhold this speciality from you, dear readers.  Sartor (there are two other very similar species, one from the Rio Trombetas (S. elongatus) […]

  • Hyphessobrycon moniliger

    9. December 2021

    Under the name “Hasemania hansseni” a new tetra has recently appeared on the market, which with its intense orange coloration is indeed somewhat reminiscent of the well-known copper tetra, Hasamania nana. However, one of the characteristics of the genus Hasemania is that it lacks the adipose fin that is so typical for tetras. This is […]

  • Characidium fasciatum (C. cf. pterostictum, P. sp. V)

    15. November 2021

    The South American darters of the genus Characidium are unfortunately almost indeterminable. There is no current revision of the 95 described species, but additional species are constantly being described and it is known that there are still numerous scientifically unrecorded species. In aquaristics one therefore helps oneself by simply calling everything “Characidium fasciatum”, well knowing […]

  • Serrasalmus cf. gouldingi

    27. October 2021

    It is indicative of the difficulties in piranha identification that this widespread species, which also occurs in an area intensively collected for the aquarium hobby (namely, the Rio Negro) was not scientifically described until 1992 and, moreover, almost never appears in the hobby. The terra typica is Anavilhanas, Río Negro, Brazil.  The representatives of this […]

  • Moenkhausia phaeonota

    22. October 2021

    This small (about 4 cm) species of tetra originates from upper Rio Tapajós basin the Mato Grosso state in Brazil. It is the only species of Moenkhausia with such a colour pattern. So already in the original scientific description (1979) the author mentioned that this generic placement can be only provisionally. This makeshift stands until […]

  • Acestrorhynchus cf. minimus

    15. October 2021

    Unfortunately, almost all predatory fishes have one unpleasant characteristic: most of them grow too large for average aquarium dimensions. In many cases we can only keep juveniles for some time and have to part with them when it becomes nice. What a pity! An exception to this rule is Acestrorhynchus minimus, a barracuda tetra from […]

  • Apareiodon affinis

    13. October 2021

    Now begins the season for one of the best algae eaters of all, the La Plata algae eater from Paraguay. Originally the species was described as Parodon affinis. It is amazingly similar in shape and coloration to the Asian Flying Foxes; but of course, the La Plata algae eater can always be easily recognized by […]

  • Myloplus (formerly: Myleus) “Lamax III”

    30. September 2021

    Silver dollars and Pacus are magnificent fish. However, they grow quite large and most species eat plants, so they are mainly suitable for show aquariums and specialists, less for the classic community tank. Therefore, the demand can usually be met well with wild catches. However, some time ago breeders in Asia have taken up the […]

  • Abramites hypselonotus

    27. August 2021

    The marbled headstander is perhaps the most unusual of all headstanders. This beautiful fish grows to about 15-20 cm in length and is hard to mistake because of its high body shape. There is only a second Abramites species, A. eques, but it has never been imported alive. It lives exclusively in the Rio Magdalena […]

  • Mylesinus paucisquamatus

    19. August 2021

    A few weeks ago we introduced you to a new pacu, which we received as Tometes kranponhah. At that time we thought the animals originated from the Rio Xingu. (see https://www.aquariumglaser.de/en/fish-archives/tometes-kranponhah-2/)  In the meantime, further correspondence with our supplier revealed that the animals did indeed come from the Rio Tocantins. We have received another shipment […]

  • Paracheirodon simulans

    5. August 2021

    Paracheirodon simulans is the smallest and tiniest species of neon tetra. The maximum length is around 2.5 cm. One should not confuse this species with the neon costello, Hemigrammus hyanuary, which is also called the “green neon” occasionally. This is the reason why some people call Paracheirodon simulans the “blue neon”, but in the international […]

  • Brycon amazonicus Colombia

    2. August 2021

    The species of the genus Brycon belong to the large tetras of the open water. 21 species east of the Andes were distinguished in the last revision by Flávio C. T. Lima (there are others west of the Andes). Their identification, especially of juveniles, presents considerable difficulties, because they usually grow to 30-40 cm in […]

  • Alestopetersius leopoldianus

    30. July 2021

    Our current Congo import contained among others the magnificent tetra Alestopetersius leopoldianus, which originates from Lac Mai Ndombe (formerly: Lake Leopold) and the middle Congo. With this maximum 9 cm long species one can get philosophical about the supposed objectivity of photography. Depending on the incidence of light the animal looks completely different! With the […]

  • Moenkhausia nigromarginata

    23. July 2021

    Again we can announce a first import: Moenkhausia nigromarginata. For the first time ever we received some of these tetras described in 1994. The species reaches a length of about 5 cm. Striking are the blue eye, the blue back in incident light and the – sometimes more and sometimes less visible – zigzag bands […]

  • Hyphessobrycon moniliger

    19. July 2021

    Under the name “Hasemania hansseni” a new tetra has recently appeared on the market, which with its intense orange coloration is indeed somewhat reminiscent of the well-known copper tetra, Hasemania nana. However, one of the characteristics of the genus Hasemania is that it lacks the adipose fin that is so typical for tetras. This is […]

  • Moenkhausia rubra

    16. July 2021

    New legislation in Brazil now allows the import of species whose export was previously not allowed. One of these species is Moenkhausia rubra, which was only scientifically described in 2014. The species is so far known only from the Rio Juína and the Rio Juruena, both belonging to the upper Rio Tapajós drainage, Mato Grosso […]

  • Hyphessobrycon sp. “Muzel Red Cherry“

    7. July 2021

    From Brazil we received this really nice novelty, which looks a bit like an enlarged edition of the Ember tetra, Hyphessobrycon amandae. However has the “Muzel Red Cherry” two (although indistinct) shoulder spots, which never occurs in H. amandae.  In addition, the dorsal fin in “Muzel Red Cherry” is red with a light margin, while […]

  • Hyphessobrycon eques “Longfin”

    28. June 2021

    The Serpa Tetra, also called the Callistus Tetra (Hyphessobrycon eques, formerly known as H. callistus or H. serpae), is the little man’s piranha. Just like piranhas, serpa tetras have an irresistible urge to bite the fins of other fish. And they constantly want to test out who is the stronger. This makes many exciting observations […]

  • Pygocentrus nattereri

    25. June 2021

    The red-breasted shoaling piranha (Pygocentrus nattereri) is present throughout the Amazon River basin. It is the most common piranha species kept in aquariums. The breeding of these animals succeeds according to plan. Pairs are formed from a shoal, which spawn in bottom pits; the parents guard the spawning site, there is no brood care beyond […]

  • Leporinus ortomaculatus

    21. June 2021

    For the first time we can offer this pretty Leporinus, which was scientifically described only in 2000. Be careful not to confuse it with L. octomaculatus, because this is a completely different species; here the confusion of one letter has consequences!  So far Leporinus ortomaculatus is known from the Rio Surumu, Roraima, Brazil and from […]

  • Which Semaprochilodus comes from Indonesia?

    16. June 2021

    Quite clearly – none at all! Because this genus is exclusively from South America. But in Indonesia these beautiful large tetras are bred and occasionally we import juveniles from there. Then one wonders which species it is. We get them as S. insignis and so we sell them on, but is the determination correct? This […]

  • Psalidodon anisitsi (= Hyphessobrycon a., Hemigrammus caudovittatus)

    7. June 2021

    One of the oldest aquarium fishes is the Buenos Aires tetra, of which the correct scientific name was only recently determined: Psalidodon anisitsi. To most aquarists, however, the species is probably still known as Hemigrammus caudovittatus (or Hyphessobrycon anisitsi), and it is under this name that it is found in most aquarium books. Since its […]

  • Nannostomus beckfordi

    4. June 2021

    Nannostomus, also known as pencil fish, propel through the aquarium like small, colorful zeppelins. The unusual, somewhat stiff-looking swimming style makes them unique in the colorful world of tetras. There are quite a few species of Nannostomus-species, but the Red Pencilfish (Nannostomus beckfordi), which grows up to 6.5 cm long (but appears smaller due to […]

  • Hyphessobrycon micropterus

    28. May 2021

    In 1915 the scientist Carl Eigenmann described a new tetra genus, which he named Megalamphodus. Type species is M. megalopterus, an aquaristic very well known species: the Black Phantom Tetra. In 1997 Megalamphodus became a synonym of Hyphessobrycon. Of the remaining species assigned to Megalamphodus in 1915 (ecuadoriensis, eques, heteresthes, melanotus, micropterus), only the Serpae […]

  • Tometes kranponhah

    26. May 2021

    In the meantime it has turned out that these animals are Mylesinus paucisquamatus from the Rio Tocantins and the statement that they came from the Rio Xingu was a mistake. New species of large fish are still being found in the rivers of South America, despite they have been well studied. This is mainly due […]

  • Pyrrhulina brevis

    5. May 2021

    We could import the beautiful species Pyrrhulina brevis already several times from Peru (see https://www.aquariumglaser.de/en/fish-archives/pyrrhulina-brevis-2/). This time they have a very intensive pattern in the anal fin, which reminds of an eye spot and corresponds with a similar pattern in the caudal fin. They are magnificent fish! For our customers: the animals have code 286754 […]

  • Hemigrammus pulcher

    30. April 2021

    From the upper Amazon in Peru comes the beautiful garnet tetra, which grows 3-4 cm long. The very peaceful animal actually has characteristics like a carbuncle, a gemstone, which in fairy tales has the ability to make the owner invisible: because the eye and tail root of Hemigrammus pulcher shimmer like gemstones, but the individual […]

  • Leporinus fasciatus

    30. April 2021

    The tetras of the genus Leporinus (the genus name is a derivative of the Latin word “lepus” for “hare”) belong to the characteristic river fishes of South America. They owe their name to the shape of their mouth in combination with the elongated “hare teeth” in the lower jaw of some species, which reminded the […]

  • Alestopetersius caudalis

    12. March 2021

    The Yellow Congo Tetra (Alestopetersius caudalis) originates, as the name suggests, from the Congo. However, it is almost never traded as wild catch, because it can be bred very well. With a final length of about 6 cm it belongs to the smaller species of the Congo tetra relationship. In the course of its aquaristic […]

  • Curimatopsis macrolepis

    1. March 2021

    The genus Curimatopsis comprised five described species until 2009 – now (2021) there are more than twice as many, namely 11! Curimatopsis can be divided into two major groups. First the C. macrolepis group with 6 species and second the C. evelynae group with 5 species. The best distinguishing feature of the two groups is […]

  • Hyphessobrycon heterorhabdus

    26. February 2021

    Already in 1894 the three-banded flag tetra (Hyphessobrycon heterorhabdus) was described scientifically; the animals on which the description was based came from the Brazilian state of Pará, more detailed information or illustrations are not available. From 1910 and in the 1920s, when the tetras advanced to the most popular aquarium fishes, also three-banded tetras came […]

  • Pseudochalceus kyburzi

    5. February 2021

    In our last post on this impressive and beautiful tetra species from Colombia, we wrote “This tetra usually grows to around 5 cm long, with 8 cm given as the maximum size.” (https://www.aquariumglaser.de/en/fish-archives/pseudochalceus-kyburzi-4/). Since last week we know, this maximum size can actually be reached! Wow, that’s the first thing we thought of these huge […]

  • Hemigrammus hyanuary Wild

    4. February 2021

    In 1957, when the first Green Tetras or Neon Costello (Hemigrammus hyanuary) were imported, the tetras were absolute fashion fish. Otherwise the comparison with the neon or cardinal tetra can hardly be explained, because H. hyanuary – which by the way is named after Lake Hyanuary in Brazil – is really nicely colored, but it […]

  • Exodon paradoxus

    24. December 2020

    For many aquaristis the Bucktooth tetra, Exodon paradoxus, is simply the most beautiful tetra from South America. The splendid fish glitter and glimmer like diamonds and they never stay still. They hunt and hit their conspecifics permanently and an uneducated watcher may become quite concerned that the fish will eventually hurt each other. But this […]

  • Paracheirodon axelrodi “Gold”

    21. December 2020

    The cardinal tetra, Paracheirodon axelrodi, is one of the most traded ornamental fish worldwide. It is a big exception in the ornamental fish trade, because it was mainly traded as a wild catch; it is different with almost all other important ornamental fishes, which are mainly or exclusively traded as bred ones. It is said […]

  • Inpaichthys kerri “Super Blue”

    18. November 2020

    There is a nice story about the discovery of the king tetra, which we don’t know if it’s true, but it’s worth telling: In the Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil, aquatic plants were kept in an aquarium. Fish were actually not in it. But suddenly, as if from nowhere, cute baby […]

  • Serrasalmus elongatus

    11. November 2020

    This very elongated Piranha can be confused hardly with other species because of its characteristic body shape. Type locality is the Rio Guaporé, Mato Grosso, Brazil. Aquaristic imports are mostly from Peru.  Serrasalmus pingke from Venezuela was described from the Rio Apure. The holotype (54 mm long) is shown in MACHADO-ALLISON (2002); it has a […]

  • Serrasalmus humeralis

    2. November 2020

    The identification of many Piranha species is difficult. One of the earliest described piranha species and therefore with many taxonomic problems is Serrasalmus humeralis. Valenciennes was the first descriptor in 1850, but there is no question that he had received the type specimen, for which he states “Amazon” as the type locality, from Castelnau. In […]

  • Pyrrhulina brevis

    26. October 2020

    The characins of the genus Pyrrhulina can be better compared to cichlids than to other characins in terms of their behavior. The males occupy small territories in the breeding season, color themselves splendidly and defend the spawn energetically until the young hatch. The generic name Pyrrhulina means “small bullfinch” because the males of many species […]

  • Mylossoma aureum

    23. October 2020

    The magnificent pacus of the genus Mylossoma that reach at most approximately 30 cm of length (the average length in the nature amounts to approximately half of this measure), are only with difficulty determinable. The last revision from 2018 (Mateussi et al.) distinguishes 4 species south of the Andes (another species, M. acanthogaster, occurs in […]

  • Jupiaba sp. „Cherry Spot“

    19. October 2020

    Once more we were able to import a new species of tetra from Venezuela which does not resemble to any species known to us. According to the supplier the animals were collected in small brooks in the surroundings of Puerto Inirida. There are no doubts that our new imports belong to the Astyanax relationship in […]

  • Anodus orinocensis

    9. October 2020

    From Venezuela we could import Anodus orinocensis for the first time. As a young fish A. orinocensis often lives in mixed shoals with Hemiodus gracilis. The two species really look amazingly similar, but Anodus is a Aufwuchs eater, and also filters the water for small organisms and swims mostly in “normal” horizontal swimming position, while […]

  • Metynnis lippincottianus

    31. July 2020

    Silver Dollars, which are the piranha relatives that eat mainly vegetable food, usually grow quite large, most species grow to over 20 cm, some to 40-60 cm long. The smallest known species is Metynnis lippincottianus, of which we can offer sexually mature specimens. They are currently 8-12 cm long, more than 15 cm total length […]

  • Serrasalmus immaculatus

    22. July 2020

    In great parts of South America there are large (up to 50 cm) piranhas, which usually become black when they are old. Another common feature of these piranhas is a red iris. It is currently common practice to refer to all these animals as Serrasalmus rhombeus because they are indistinguishable as adult fish. However, young […]

  • Phenacogrammus interruptus

    13. July 2020

    The Congo Tetra, Phenacogrammus interruptus, sometimes also called the Blue Congo Tetra, is the only one of the approximately 350 tetra species in Africa that is always available in pet shops. This is of course due to its beautiful colouring, which shimmers differently on the flanks depending on the incidence of light, the reddish-brown back, […]

  • Metynnis sp. Big Spots Peru

    9. July 2020

    From Peru we occasionally receive beautiful young Metynnis. We have not yet been able to identify them; they either belong to a scientifically undescribed species or represent a local form of M. maculatus. They certainly belong to the species cluster around Metynnis maculatus and we think that the final size, similar to M. maculatus, is […]

  • Metynnis sp. Big Spots Peru

    1. July 2020

    From Peru we occasionally receive beautiful young Metynnis. We have not yet been able to identify them; they either belong to a scientifically undescribed species or represent a local form of M. maculatus. They certainly belong to the species cluster around Metynnis maculatus and we think that the final size, similar to M. maculatus, is […]

  • Serrasalmus rhombeus „Tocantins“

    15. June 2020

    From the Rio Tocantins in Brazil we received wonderful, 11-14 cm long Serrasalmus rhombeus. This species grows 35 cm, maybe even 50 cm long, making it one of the largest piranha species of all. One can recognize adolescent S. rhombeus quite well by the combination of ruby red eye, a shoulder spot which is not […]

  • Hyphessobrycon “ornatus White Fin” XL

    29. May 2020

    We just have a tank full of fully grown rosy tetra (Hyphessobrycon rosaceus) of the breeding form “White Fin” in stock. These magnificent fish are a real feast for the eyes. Read more about this form of fish, which is also known as H. bentosi or H. ornatus in the hobby here: https://www.aquariumglaser.de/en/fish-archives/hyphessobrycon-ornatus-white-fin-2/ For our […]

  • Moenkhausia costae

    22. May 2020

    This tetra originates from Brazil (Rio Sao Francisco and Itapicuru). It reaches a maximum length of about 7 cm. Currently we can offer German bred specimens of this attractive schooling fish. For our customers: the fish have code 268613 on our stocklist. Please note that we exclusively supply the wholesale trade. Text & photos: Frank […]

  • Triportheus cf. nematurus

    25. March 2020

    The unusual genus Triportheus contains very interesting, somewhat larger species. Depending on the species these fish attain a length of 15-25 cm. Currently 16 species are distinguished that inhabit all major river systems of South America. From time to time we import members of the genus from Paraguay. Two species can be found there, namely […]

  • Moenkhausia hemigrammoides

    18. March 2020

    From Venezuela we recently received „feather tetras“. This is what we used to call tetras that have a striking black stripe in the anal fin, accompanied by a white line in front of it. In general, however, the term “feather tetra” is alternatively used to species of the genus Hemiodus or Hyphessobrycon copelandi. Our “feather […]