Betta macrostoma is undoubtedly one of the most beautiful fighting fish—and one of the most sensitive. There is hardly any other fish species that is as susceptible to bacterial infections as this one. Many breeders have no choice but to run their tanks continuously through UV filters. A little tip: clay dissolved in the water […]
When one sees these sleeper gobies from the Indo-West Pacific region, where they are very common, for the first time, one spontaneously thinks of an oversized Australian spotted goby (Mogurnda). The main difference between Giuris and Mogurnda is – aquaristically speaking – that the tiny larvae of Giuris develop in the sea, while the much […]
The Malawi eyebiter Dimidiochromis compressiceps (formerly: Haplochromis c.) is one of the most unusual cichlid species in Lake Malawi. It is a predatory fish, with males reaching up to 25 cm in length and females up to 20 cm. In 1966, the species was mistakenly considered to be a specialized eye eater. However, this behavior […]
The Port Hoplo Megalechis thoracata – maybe the synonym (now invalid) name Hoplosternum thoracatum is more familar to some readers – is one of the earliest aquarium fish at all. The fish has only one real disadvantage: the maximum size, which is about 15 cm (or sometimes even larger). However, the species has a comparatively […]
A pretty new tetra is Inpaichthys luizae, a species that was only formally described in January 2025. It occurs in areas that are hardly accessible to scientists and commercial fishermen because they are privately owned. What is known, however, is that these locations are tributaries of the Rio dos Peixes in Brazil, which in turn […]
The snail cichlids of Lake Tanganyika continue to enjoy unbroken popularity. Their comical breeding behavior, in which they guard their spawn and young in empty snail shells, never ceases to fascinate. It is particularly interesting to observe an entire colony of these fish inhabiting what is essentially a snail shell city. In most snail cichlids, […]
The genera Sturisoma (15 scientifically described and accepted species, east of the Andes = cis-Andean) and Sturisomatichthys (13 scientifically described and accepted species, west of the Andes = trans-Andean) are referred to in German as Störwelse (= sturgeon catfish), in English as Royal Farlowellas. Sturisoma nigrirostrum from Peru is imported more or less regularly. The […]
Hoplisoma sp. C3 (previously classified in the collective genus Corydoras) is a very beautiful armored catfish, especially adolescent specimens, because they often develop high dorsal fins at this age. However, this is a temporary phenomenon that can sometimes also be observed in Hoplisoma metae. Only fully adult males of C3 – the animals grow to […]
Polycentropsis abbreviata means roughly translated “short and similar to Polycentrus”. In fact the African Leaffish looks very similar to Polycentrus schomburgkii from South America. Both species witness the existence of the ancient super continent Gondwana. Gondwana was formed from what is now South America, Africa, India, Australia, and Antarctica. South America drifted away from Gondwana […]
Oriximiná is located on the Rio Trombetas in the Brazilian state of Pará. From there we receive fantastic blue discus in magnificent colors. For the tiresome question of species classification in discus, see here: https://www.aquariumglaser.de/en/fisharchive/the-scientific-species-name-of-discus-cichlids-an-open-question/ Blue discus are generally very variable in color (“polychromatic”), even those from the same location. That is why the “Oriximina […]
In 1982, Gerald R. Allen and Norbert J. Cross published the first modern comprehensive overview of the rainbowfish known at that time. By that time, Allen had already described 12 new species since 1978. When he began systematically studying rainbowfish, only 19 Melanotaenia species had been described between 1843 and 1978, a period of 135 […]
We have received a very small number of one of the smallest and definitely one of the prettiest loaches in Thailand: Schistura pridii. These cute black and white dwarfs grow to only 3-4.5 cm in length. As far as known, this species, which was only scientifically described in 2003, only occurs in shallow, fast-flowing forest […]
We received a species of mormyrid from Nigeria that we had not seen for years: Brienomyrus brachyistius. This comparatively small species, with a maximum length of 17.5 cm, but usually remaining significantly smaller at 10-12 cm, is a close relative of the comparatively frequently imported species B. niger (see https://www.aquariumglaser.de/en/03-bony-tongues/brienomyrus_niger_en-2/). These playful, intelligent fish are […]
In 2002, a deep red dwarf pencil fish from Peru was imported under the names Nannostomus marginatus “Purple” or N. marginatus “Red.” Axel Zarske from the Senckenberg Natural History Collections Dresden, Museum of Zoology formally described this species in 2009 as Nannostomus rubrocaudatus. We had imported the type specimens on which the scientific description is […]
Breeding marbled swordtails on a red background is a challenge. With the “Black Tiger,” it has succeeded. Each “Black Tiger” has its own unique body markings. Until now, these swordtails have almost exclusively been offered with a whitish body color (in which case they are referred to as marble). Many of the black scales have […]
Aquarium Glaser has once again received the smallest known Danio species, which is closely related to the zebrafish (Danio rerio), from Burma. Danio tinwini was first imported in 2005, at that time still known as Danio sp. “Panther.” The species, which was scientifically described in 2009, grows to only about 2-3 cm in length and […]
On the Guiana Shield of South America – a very old geological formation that covers large parts of Venezuela, Guyana, French Guiana, Suriname, and parts of Brazil and Colombia – there is a group of small, closely related species of armored catfish that look so similar that they were sometimes considered synonymous with each other: […]
We received from Thailand this wonderful sport of the Blue Loach (Yasuhikotakia modesta, formerly known as Botia modesta). The species is well known for its variability. Most often the fish are blue with bright red fins (see https://www.aquariumglaser.de/en/07-carp-like-fishes-1-loaches/yasuhikotakia-modesta-2-3/, there you will also find lots more information about the species.), but the body colour can vary […]
The genus Garra is incredibly diverse and confusing. Currently (December 2025), 277 species names are associated with Garra, of which 171 are generally considered valid. The distribution area is huge and extends across parts of Africa and large parts of Asia; they can be found basically anywhere where it does not get too cold in […]
The harlequin barb, Trigonostigma heteromorpha (formerly Rasbora h.), is one of the most important aquarium fish of all. For this reason, it is traded almost exclusively as a captive-bred species, as the availability of wild-caught fish fluctuates greatly due to seasonal conditions (during the rainy season, the natural habitats are often inaccessible for months). In […]
Finally we were able to import again a small number of the extremely rarely offered long snouted Corydoras amapaensis. The distribution range of this extraordinary species lies in the Oyapock and Amapari river basins in the state of Amapá in Brazil and in French Guiana. The species is highly variable in respect of coloration. The […]
One of the largest Asian barbs imported for aquarium keeping is Barbonymus schwanefeldii. It used to be known formerly as Barbus. This species, native to Borneo, Malaysia, and Thailand, grows up to 35 cm long. The red coloration of the tail fin is wonderful and is found in this intensity in hardly any other fish. […]
So-called gold tetras are found in many species of characins in South America. Usually, only a few fish in a school are affected by the phenomenon in which guanine, the substance responsible for the shiny silver or gold glitter effect of the fish scales, is secreted at a much higher rate than usual. We explain […]
The tailspot bushfish (Ctenopoma kingsleyae) originates from wooded areas in western Africa. It was one of the first labyrinth fish exported from Africa for aquariums. The first specimens from the lower Niger region arrived in Germany as early as 1912. Strangely enough, this calm, peaceful species was described at the time as very aggressive and […]
Nannostomus mortenthaleri from Peru (Rio Nany tributary in the province of Loreto) was the most beautiful new discovery in aquatics in 2000. The close relative of the dwarf pencil, N. marginatus, remains small – approx. 4 cm – and is breathtakingly beautiful in color in the male sex. At least sometimes. Because apart from anatomical […]
Black and white goldfish are referred to as “magpie-colored” in breeding circles, fish with telescope eyes as “Demekin,” and those with a simple double tail fin as “butterfly tail.” An Oranda, on the other hand, is a goldfish with a hood, in breeding terms. Accordingly, the cute pandas that we were finally able to import […]
At the beginning of 2024, this snakehead species, which had long been known in the hobby as Channa sp. Fire & Ice, was scientifically described as Channa pyrophthalmus. So far, it is only known from the extreme southern border area between Burma and Thailand. We are currently able to offer this small and colorful Channa […]
For the first time, we are able to offer a small number of this “new” variant of the well-known Apistogramma agassizii. They were originally by-catches of the magnificent Putumayo variant of A. bitaeniata from Peru (see https://www.aquariumglaser.de/en/fisharchive/apistogramma-bitaeniata-putumayo-4/). We raised a few specimens to see what would become of them, and we can only say: it […]
This species of pygmy sunfish was only formally described scientifically in 2009. It originates from Florida and Alabama, where it occurs alongside (but not together with) the very similar species E. okefenokee. Like all pygmy sunfish, they are small fish, with males reaching a maximum total length of 3 cm; females remain smaller. The sexes […]
Hillstream loaches belong to the loach family. The most beautiful representatives are found in the genus Homaloptera. Until a few years ago, this genus was very broadly defined; 72 species were described as Homaloptera spp. Today, however, the definition of the genus is much narrower and only six species are assigned to the genus Homaloptera: […]
One of the first tetras ever imported for aquariums is Hyphessobrycon flammeus. Since its first import in 1924, the species has never disappeared from aquariums, as it is easy to breed and the fish are very productive. Due to its origin (the area around Rio de Janeiro in Brazil) and its pretty red color, the […]
There are four species of lungfish in Africa, some of which are difficult to distinguish from one another. The situation in Congo is particularly confusing (see https://www.aquariumglaser.de/en/29-lungfishes/lungfishes-from-the-congo/). Only the species Protopterus dolloi is always easy to recognize due to its elongated body shape. The surest way to distinguish between the three species Protopterus aethiopicus, P. […]
The rummynose tetras are a beautiful eye-catcher for any aquarium with peaceful fish. A shoal of these animals, and there should always be 15 – 20 specimens if possible, delights every observer because these animals really do swim permanently in a shoal; the vast majority of so-called shoal fish among aquarium fish do not do […]
The colorful rock cichlids (Mbuna) of Lake Malawi are mainly kept for their bright colors, but they actually have more to offer in terms of behavior than just looking good. Maylandia sp. Daktari—a species not yet scientifically described—occurs only in a relatively small area in four populations; two of these populations are indistinguishable in appearance. […]
This attractive squeaker catfish originates from the lower Congo (for example in the Pool Malebo area, formerly known as Stanley Pool). With a final size of around 20 cm, it is one of the medium-sized species of the genus. In the past, this catfish was considered to be as sensational as the zebra catfish (L46, […]
The fishing season for the beautiful Golden Nugget catfish of the genus Baryancistrus lasts from around the end of May to the end of September. Due to the varying sizes of the spots on their bodies and the varying widths of the fin edges on their dorsal and caudal fins, as well as the varying […]
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 initially peppered prices are paid for the novelties. Naturally, such a thing only works for a short […]
This small (5-6 cm) mouthbrooding species from Thailand is a very nice addition to the assortment of wild collected Betta we occasionally have in stock. Betta simplex is a close relative to the species Betta picta from Java, Betta falx from Sumatra, and Betta taeniata from Borneo. All the mentioned species share obviously the same […]
The global loss of biodiversity, i.e., species diversity, is terrible. People who are particularly interested in nature, and this includes aquarists in particular, feel the extinction of species almost as physical pain. Small fish species are among the few organisms that are very well suited for conservation breeding over a very long period of time […]
The large (around 60 cm) spiny eel Mastacembelus unicolor was scientifically recorded early on. The two researchers Kuhl and van Hasselt discovered it in the western part of Java during their stay there from 1820 to 1823 and also made a drawing of the animal. The two paid for their thirst for knowledge with their […]
With 133 species, the squeaker catfish (Synodontis) inhabit practically the entire African continent. The smallest species grow to 6-7 cm in length, the largest to 60-70 cm. They play a very minor role in aquariums. Only the Upside-Down catfish (Synodontis nigriventris) and a few species from Lake Tanganyika are true aquarium fish with a larger […]
The genus Curimata currently comprises 13 species; only one of these occasionally finds its way into our aquariums, namely Curimata vittata. The other species simply offer no incentive to keep them. They are shiny silver-colored animals that can reach a length of 15-20 cm and feed mainly on plant material. Curimata vittata also reaches this […]
The miniature lampeyes of the genus Fluviphylax are the smallest relatives of killifish. When fully grown, their body length is less than 2 cm standard length (i.e., without the tail fin), usually around 1.5 cm. Until recently, these dwarfs were only known from Brazil, from where we were occasionally able to import them, but that […]
There are three species of Apistogramma that even a very experienced Apistogramma enthusiast cannot reliably distinguish from one another: A. uaupesi (scientifically described in 1980 from the Rio Uaupes in Brazil, previously given the common name “segelflossen ( = sailfin) apistogramma” by Schmettkamp, later referred to by various authors as “red-wedge ( = rotkeil)” or […]
We received four larger (10-15 cm) banjo catfish from Colombia, which turned out to be four different species. The two Xyliphius specimens were identified relatively quickly; one is a specimen of X. lepturus and the other is an almost entirely black specimen of X. melanurus (see https://www.aquariumglaser.de/fischarchiv/xyliphius-cf-lepturus-und-x-cf-melanurus/). The two “real” Bunocephalus were more difficult to […]
Banjo catfish (Bunocephalus) are extremely common in nature. That’s why we always have them in stock. We usually refer to these animals as Bunocephalus coracoideus, which may be correct in many cases. But when you look at such a swarm of banjo catfish, you notice that there are always other species mixed in. As a […]
Whenever one of our suppliers offers a “new variety,” we order a box to see what it is. However, we know from experience that the term “new variety” is often used very flexibly. The spectrum ranges from “old news, but new to our list” to “wow, we’ve never seen anything like this before.” This time […]
In 2009, we successfully imported a large, beautiful armored catfish from the Rio Jutai in Brazil for the first time. At the time, we referred to the animals as Corydoras sp. aff. armatus because their particularly high dorsal fin and general body shape were very reminiscent of C. armatus. However, C. armatus (current name: Hoplisoma […]
The city of Niété is located in the southern part of Cameroon and is part of the Océan department in the South Province. It is traversed by the Nyété River, which is a tributary of the Lobé River. The beautiful Pelvicachromis kribensis occurs there in a special color variant known in the hobby as “Nyété.” […]
The roundtail or Chinese paradise fish (Macropodus ocellatus, formerly M. chinensis) is a fish for connoisseurs and experts. For connoisseurs because it is extremely inconspicuous in its plain plumage – i.e. as a rule in the dealer’s tank. Those who are not familiar with it will therefore usually not buy it. But connoisseurs know: in […]
From Colombia (Rio Meta basin), we have obtained Saxatilia sveni, which is very rarely imported, together with Crenicichla (Batrachops) sp. “Belly Crawler” ( = C. sp. aff. sedentaria), which also occurs there. This representative of the former Crenicichla saxatilis group, which is currently grouped in a separate genus Saxatilia, grows to a considerable size, 25-30 […]
The genus Crenicichla was once the largest of all cichlid genera, with 139 scientifically described species, 93 of which are generally recognized as valid species. In addition, there are a large number of species that are already known to aquarists but have not yet been scientifically studied. The genus has since been subdivided (see https://www.aquariumglaser.de/en/25-perchlike-fishes/the-crenicichla-have-been-reclassified/). […]
We consider the import of this beautiful new Hoplisoma to be sensational. According to the supplier, it comes from a small tributary of the Rio Tomo in eastern Colombia. The fishermen refer to this tributary as Cano Negro. The water is described as “crystal clear.” The Rio Tomo itself is a tributary of the Orinoco, […]
Currently (September 2025), 28 species are assigned to this genus. The genus was established in 1907 by Eigenmann for the species Tetragonopterus pectinatus, described in 1870 by Cope from Peru (Pebas). Cope’s description was not accompanied by any illustration, so Fowler drew the holotype in 1907, which he classified in the genus Astyanax. Based on […]
Imagine you have a first import and don’t even realize it! That’s what’s happening to us right now with a tetra. We received some very beautiful, large Hemigrammus coeruleus from Colombia. At least, that’s what we thought. By chance, Peter and Martin Hoffmann, from whom we often and gladly receive rare tetra offspring, needed a […]
In the 1990s, when Brazil’s large river cichlids experienced something of a boom, four species from the former collective genus Crenicichla also arrived in Europe for the first time. Due to the lack of a scientific name, they were designated Crenicichla sp. Xingu I – IV. All four grow to a considerable size for ornamental […]
In old aquarium books, you can still read that the males of the Least Killifish (Heterandria formosa) could claim the title of “smallest fish in the world.” They grow to a maximum length of only about 2 cm, which is significantly smaller than the females, which grow to a length of up to 3.5 cm. […]
This dwarf goby, a relative of the of neon gobies (Stiphodon), was scientifically described in 1999. To date, the species is only known from coastal rivers in western New Guinea (Irian Jaya). However, since it undergoes its juvenile development in the sea, like all sicydiine gobies, it is more than likely that it is much […]
We have once again received offspring of this beautiful rainbow fish. For basic information, please refer to this post: https://www.aquariumglaser.de/en/17-rainbow-fishes-and-co/glossolepis_dorityi_lake_nenggwambu__en/ Unfortunately, it is quite likely that Glossolepis dorityi, which was only scientifically described in 2001, is already extinct in the wild. We quote here from the entry in the International Red List (IUCN): “This species […]
It is not without reason that guppys are among the most popular ornamental fish in the world, ranking high in the top ten. The play of colors is almost endless. This applies to the “classic” guppy Poecilia reticulata as well as its slightly smaller cousin P. wingei, the Endler guppy, and the countless hybrids that […]
Banjo catfish (Bunocephalus) are extremely common in nature. That’s why we always have them in stock. We usually refer to these animals as Bunocephalus coracoideus, which may be correct in many cases. But when you look at such a swarm of banjo catfish, you notice that there are always other species mixed in. As a […]
Many good aquarium fish have come to us from the extremely species-rich genus Garra. The “doctor fish” Garra rufa (https://www.aquariumglaser.de/en/fisharchive/garra-rufa-2/), Garra flavatra (https://www.aquariumglaser.de/en/08-carp-like-fishes-2-barbs-minnows-carps-goldfish-etc/garra_flavatra_en/) is very pretty, and Garra panitvongi (https://www.aquariumglaser.de/en/fisharchive/garra-panitvongi-sp-red-tail-2/) is bizarre and beautiful. Now we received two specimens of a Garra species as samples, whose beauty took our breath away. This is Garra qiaojiensis, […]
The discovery of a new genus of driftwood catfish—Spinipterus—is quite sensational. In 2011, the first species of the newly described genus (S. acsi) was described and the new genus was established for it. In 2019, the second species (S. moijiri) was added, which is significantly more attractive in appearance and displays a beautiful jaguar pattern […]
The three-banded pencilfish, Nannostomus trifasciatus, is one of the most popular ornamental fish. It combines numerous characteristics that make it desirable: beautiful coloration, peaceful nature, small size, and easy feeding. However, few people know that the name “Nannostomus trifasciatus” actually refers to several species. The “real” N. trifasciatus is relatively rare in stores. It comes […]
The genus Sicyopterus comprises the largest species of the increasingly popular sicydiine gobies, which include Stiphodon, Sicyopus, Sicydium, Lentipes, and others. All of these gobies undergo their larval development in the sea, while the adults live in pure freshwater and lay their eggs there. Since the larvae have hardly any yolk reserves, they must be […]
The genus Aspidoras has recently undergone a revision, resulting in several regroupings. Among other things, the species A. menezesi and A. spilotus, well known at least by name in the hobby, have been synonymized with A. raimundi. Cory-catfish enthusiasts agree that C125 and CW119 also belong here. More information on the wild type of A. […]
One of the most magnificent armored catfish to become available in recent years is undoubtedly the CW127 from the Rio Jamanxim. For more information, see https://www.aquariumglaser.de/en/fisharchive/corydoras-sp-aff-parallelus-cw127-4/ We now have German captive-bred specimens of these magnificent animals in stock for the first time. For our customers: the animals have code 240262 on our stock list. Please […]
In this day and age, when absurd debates are being held about banning private animal husbandry as far as possible (“positive list”), we must always remember the great successes that have been achieved with many fish groups thanks to the aquarium hobby. The genus Apistogramma is a prime example of this. Until 1977, 31 species […]
With 23 species, the genus Hemiodus is quite species-rich. The majority of species grow to a length of 15-20 cm, with the largest reaching around 30 cm. Previously, three genera were distinguished (Hemiodus, Hemiodopsis, and Pterohemiodus). However, the characteristics considered to be differences between the genera proved to be insufficiently relevant. Therefore, all three were […]
The genus Pimelodus is quite species-rich, with 35 recognized species currently, and also very confusing due to a lack of recent revision. These South American catfish play only a minor role in aquariums. The only species regularly available in stores is Pimelodus pictus, the angel catfish, and P. ornatus is an expensive rarity sought after […]
From the species-rich genus Harttia—currently divided into 28 species—hardly any ever find their way into our aquariums. The fish are relatively close relatives of the popular royal farlowellas (Sturisoma and Sturisomatichthys) and resemble them in many behaviors, but are considerably more demanding. Harttia need very clean, oxygen-rich, and warm water to thrive; in addition, fine […]
The number of species in the genus Sternarchorhynchus has exploded in recent years. In 1994, only four species were known, but by 2006, the number had risen to ten, and today (2025), 32 species are recognized! This makes Sternarchorhynchus the most species-rich genus within the Apteronotidae family. With a shipment of Apteronotus macrostomus (in the […]
The longest-serving mouthbrooding cichlid in our aquariums is Pseudocrenilabrus multicolor. It was introduced to Germany from Egypt as early as 1902. The animals, which are usually 4-5 cm long—the maximum length given in the literature is 8 cm—have never died out in the hobby since then. It can even be assumed that these fish have […]
The small sucker catfish of the genus Otocinclus are among the most popular “cleaners” in aquariums. They tirelessly clean all surfaces they can reach. Since they usually only grow to 3-4 cm, rarely up to 5 cm in length, and perform their cleaning activities very delicately, they do not damage even relatively delicate plants, but […]
This cichlid was scientifically named and illustrated as early as 1912 under the name Nannacara bimaculata. However, it remained a phantom in the hobby. Its distribution area in Guyana (Potaro River) is considered one of the most difficult areas to travel to in South America. It was not until 1997 that Frans Vermeulen, together with […]
The upside-down catfish Synodontis nigriventris is the most popular species from the species-rich genus Synodontis. The comical behavior of these animals, which prefer to swim belly-up, is certainly the main reason for this. In addition, the species remains small, well under 10 cm. In fact, we have never seen animals larger than about 7 cm […]
The driftwood catfish Tatia perugiae has become firmly established in the hobby. The species is small (4-6 cm), very pretty in color, and easy to breed in the aquarium. In addition, the animals are very peaceful and undemanding in terms of water composition and food. It is understandable that they usually only leave their hiding […]
The genus Hypoptopoma comprises small to medium-sized (the largest species is just over 10 cm long) armored catfish, which at first glance look like an enlarged version of Otocinclus. A characteristic feature of this genus is that the eyes are located on the sides of the head, giving a Hypoptopoma sitting on a plant stem […]
The meaning and nonsense of commercial names for guppys is a matter of debate. But there is no doubt that the so-called Guppy Tricolor Cobra is a truly colorful guppy. To some, the term “colorful guppy” may seem like a pleonasm, like “white gray horse” or “cold ice.” Of course, guppys are almost always very […]
There are relatively few aquarium fish for which a really common popular name has developed. Andinoacara pulcher (formerly: Aequidens pulcher) is one of them. It is regularly found in aquarium books under the name “Blue Acara”. The year of first introduction is given as 1906. As with most well-known aquarium fish, it is no longer […]
Most species of Nomorhamphus halfbeaks come from the island of Sulawesi (formerly: Celebes). Some, such as N. ebrardtii or N. rex, are mainly traded as wild-caught specimens, others, including N. liemi, are also bred. Black Celebes halfbeaks are very rare in the trade. We can sometimes offer captive-bred specimens of Nomorhamphus celebensis of 4-6 cm […]
The knifefish are very widespread in tropical Africa with three species. With a total length of about 60 cm, Papyrocranus afer belongs to the large knifefish, while a second African species, Xenomystus nigri, which also occurs in Nigeria, is one of the smallest (Old World) knifefish with a final length of 15-20 cm. The third, […]
In 1977 the „bible for all characin friends“ was punblished: Jaques Géry´s „Characoids of the world“. Almost at the end of this book a picture of a so far undescribed glass tetra was published that had an extremely unusual air bladder. This animal was described only one year later – in 1979 – by Richard […]
Hoplisoma concolor (formerly Corydoras concolor) is a distinctive species from the Orinoco basin in Colombia and Venezuela. Its synonymization with Corydoras esperanzae was long overlooked, but is now completely undisputed. The first person to describe it, Castro, simply overlooked H. concolor in his 1987 work on the armored catfish of Colombia (the species had already […]
This killifish from North America is one of the evergreens in the aquarium hobby and has delighted many generations of aquarists. Unfortunately it has become quiet around this attractive animal in the last years. But now beautiful American Flag fish are available again from Southeast Asian breeders. Jordanella floridae grows 4-6 cm long and is […]
Crowntail bettas enjoy great popularity. Although the breeding form was probably already known in the 1960s and the gene for the crowntail factor is dominantly inherited, the fish only made their breakthrough in Central Europe and America at the beginning of this millennium. Their exact history is not documented, the first known verifiable mention was […]
The Metallic Topminnow, Girardinus metallicus, like all Girardinus species (currently 7 species are recognized), originates from Cuba. It is the only species that has been able to establish itself in the hobby. Black-bellied males do not occur in nature, at least nobody has ever found any there; in the hobby, on the other hand, one […]
Armored catfish are known to be a very species-rich and diverse group of fish. The largest species can grow to a length of one meter; Nannoptopoma are among the smallest known species, reaching only about 3-4 cm in total length. The genus Nannoptopoma is easily recognizable by its eyes, which are positioned very far to […]
For the first time we succeeded in importing a highly interesting, apparently small half-beak species from Sulawesi (formerly Celebes), which is most probably N. kolonodalensis. This species was scientifically described in 2000. It is named after the Kolonodale region. The Black Sulawesi Halfbeaks Nomorhamphus celebensis and N. towoetii, which were imported together with this species, […]
Schaller’s Croaking Gourami is one of the unfortunately rarely available labyrinth fish. These pretty animals mostly come from central Thailand (they can be found comparatively far north and also in Vietnam) and grow to around 4 cm in length. This makes them slightly larger than the Dwarf Croaking Gurami (Trichopsis pumila 2.5-3 cm) and slightly […]
The squeaking catfish (Synodontis) of Lake Tanganyika became world-famous when one of their species was found to have cuckoo breeding behavior. This involves the catfish sneaking their spawn to mouthbrooding cichlids. The catfish are not only hatched by the cichlids, but the brood parasites even feed on the young cichlid stepsiblings in the mother’s mouth. […]
We were able to import this cute dwarf tetra from Peru for the first time in April 2003. Since then, we have succeeded in importing it from time to time. The fish was initially provisionally called “Heterocharax sp. – Orangefin Tetra” or “Hummingbird Tetra”, sometimes also referred to as “Tyttocharax sp.”. A. Zarske scientifically described […]
The cute hermit crab Clibanarius africanus has become a popular invertebrate. It is a euryhaline animal, which means that it can live in both pure freshwater and pure seawater. However, the life expectancy in pure freshwater seems to be limited to a few months, which is why it is better to keep the animal in […]
The famous Berlin cross of the swordtail is the result of a gene transfer by hybridisation. Sounds complicated? The Berlin Swordtail is a breed originally produced by crossbreeding species, which was later adapted to the appearance of swordtails by displacement breeding. In red and yellow Platy (Xiphophorus maculatus) strains, black-spotted animals occasionally appear as a […]
We always have a good selection of different Endler types in stock, including both natural and cultivated forms. Especially with the Endler-Guppy the boundaries blur very quickly, because certain colour characteristics can be stabilised by selection. The “Lime Green” is a selection of the “Green” (see https://www.aquariumglaser.de/en/18-toothcarps-killis-and-livebearers/new_endler_sports_en/), but still very variable. For our customers: the […]
Hoplarchus psittacus is one of the very rarely available large cichlids from South America, which is called “Acara paragua” – parrot cichlid – by the indigenous population because of its red breast, which is reminiscent of the colors of some parrots in the Amazon region. Hoplarchus psittacus is the only species of the genus. It […]
From time to time we have beautiful wild catches of these two Danio species from Burma in stock, which are often characterized by particularly intense red tones in the fins. D. kyathit and D. quagga replace D. rerio, the zebrafish from India, in Burma. Apart from the coloration, the three species are absolutely identical, also […]
In the 1960s Tetraodon schoutedeni was one of the most common freshwater puffers in the trade. Also the breeding of the animals succeeded regularly. The fish are free spawners without brood care. But the civil war in Congo changed the situation drastically and even nowadays catchers are reluctant to go to the occurrence areas of […]
L-numbers were never intended as a substitute for scientific species designations, but rather to illustrate the diversity of imported loricariids and simplify communication. This is why it happened more frequently that the same zoological species was given several L-numbers, e.g. L18, L81 and L177. They look different, but belong to the same species, namely Baryancistrus […]
Unfortunately, only very few small fish species from the USA are represented in the hobby. One of the species occasionally offered is the very pretty minnow species Chrosomus erythrogaster. This species is widespread in the wild and common in suitable habitats. It is usually found in small mountain streams from Minnesota and western Pennsylvania, south […]
