Tag Archives: tetra

Anostomus anostomus

19. February 2018

The Striped Headstander is one of the most beautiful species of tetra from South America. It really looks like the big brother of the Threestripe pencilfish, Nannostomus trifasciatus. Anostomus anostomus attains a maximum length of about 15-18 cm. Sadly there are hardly ever exportations of ornamental fish from Guyana currently, so the beauty became rare in the hobby. But now we were able once again to import a good number of young adults, about 9-12 cm long. One of the most famous aquarium books in German, the Aquarien Atlas, says: who never kept this fish not an aquarist at all! There´s nothing left to say …

For our customers: the fish has code 205506 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Two new tetras from the Rio Negro region: Hyphessobrycon paepkei and H. cf. agulha

5. May 2017

In a shipment containing Hyphessobrycon socolofi (Socolof´s bleeding heart) we found an extraordinary large number of bycatches. Allmost half of the shipment were another species, obviously a close relative of H. ornatus (Rosy tetra). We took a closer look and found the the bycatches were the Goldshoulder rosy tetra, H. paepkei. This species has been described only a few years ago, the type specimens also originated from our fishhouse. Usullay onyl a few specimens could be selected from shipments of other species, but this time we had quite a good number. So we decided to assort them. A nasty buisiness, but now we were able to offer the beautiful Goldshoulder rosy tetra for the first time on a regular basis. Regarding keeping this fish: it does not differ in any respect from well known, closely related aquarium fish, like the phantom tetras or the rosy tetras.

Another new species also reached us in former times in single specimens only from the Rio Negro region. Without any doubts the animals are identical with the tetra illustrated on page 472 of „the bible of tetra lovers“, Gery´s „Characoids of the world“. The caption says „Hyphessobrycon agulha, or close to it“. In contrast to all the different varieties of tetra that look similar this one has very attractive red stripes in the caudal fin. This new tetra is also comparable in respect of aquarium demands to a very well known one, namely the Black Neon, Hyphessobrycon herbertaxelrodi.

Hyhessobrycon cf agulha

For our customers: Both species were available in limited numbers only and are sadly sold out already.

Text & photos: Frank Schäfer

Copella arnoldi

2. May 2017

The Splashing tetra (Copella arnoldi) is very famous due to it´s unique way of spawning. The pair jumps out of the water and deposites the eggs on the underside of plant leafes hanging over the water surface (in the aquarium they often spawn on the top glass). After spawning the male guards the clutch and splashes water in regular intervalls over the eggs to avoid drying. The offspring hatches within 36 hours.

This fascinating behaviour is one of the „must have seen“ events in the life of every real enthusiast. However, one tends to forget sometimes the fact that the Splashing tetra also is a real beauty! Currently we have fully grown animals in stock. The Splashing tetra inhabits in the wild savannah creeks in the Rio Xingu basin in Brazil; however, nowadays almost exclusively bred specimens can be found in the trade.s

For our customers: the fish have code 219554 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Hyphessobrycon melanostichos

28. April 2017

In our latest newsletter I made a regattable mistake: I used pictures of Hyphessobrycon cf. melanostichos instead of pictures of the „real“ Hyphessobrycon melanostichos in the post; H. cf. melanostichos differs a lot from the „real“ species in life colours. So here are now pictures of the „real“ H. melanostichos, the fish we currently have in stock. It is very interesting that in tis species the male changes a lot in coloration, as we have seen it in Hemigrammus coeruleus. This is very unusual in species of the Hemigrammus-Hyphessobrycon-relationship, in which the males usually only get a bit brighter coloration during courtship.

Hyphessobrycon melanostichos has a striking bright skyblue dorsal coloration. The species has been described scientifically in 2006 from the state of Mato Grosso in Brazil; here H. melanostichos is found in the upper reaches of the Rio Tapajós basin. The species is distinguished from all other species of Hyphessobrycon by the comobination of the following characters: „a conspicuous longitudinal broad black band, beginning on the posterior margin of orbit and reaching the distal tip of middle caudal fin rays; humeral spot vertically elongate and distinct from lateral band; and 16 to 18 branched anal-fin rays.“ (Carvalho & Bertaco, 2006)

The coloration (of preserved fish) is the same in Hyphessobrycon cf. melanostichos, but this form has 19 branched anal fin rays. Moreover in the original description of H. melanostichos a freshly preserved male is illustrated, obviously a breeding animal. The coloration of this specimen fits perfectly to the one of the mating male we can illustrate here (it is one of the parents of the fish we currently have in stock). So we have no doubt anymore that we now have the „real“ Hyphessobrycon melanostichos in stock, while the status of the H. cf. melanostichos remains the subject of further investigations.

For our customers: the „real“ Hyphessobrycon melanostichos has code 261832 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text: Frank Schäfer, photos: Frank Schäfer, Peter & Martin Hoffmann


Carvalho, T. P. and V. A. Bertaco (2006): Two new species of Hyphessobrycon (Teleostei: Characidae) from upper rio Tapajós basin on Chapada dos Parecis, central Brazil. Neotropical Ichthyology v. 4 (no. 3): 301-308.

Tetras: top rarities, German bred

27. April 2017

We obtained from our proofed breeder three species of tetra which are hardly – if ever – available in the trade, all German bred. Hyphessobrycon melanostichos, H. nigricinctus, and Hemigrammus coeruleus. Especially H. coeruleus is now available in larger numbers (yippieh!), the remaining two species are only in small numbers in our stock.

For our customers: H. melanostichos has code 261832, H. nigricinctus 261463, and H. coeruleus 256322 on our stocklist. Please note that we supply exclusively the wholesale trade.

Text: Frank Schäfer Photos: Frank Schäfer & Peter Hoffmann

Hemigrammus rubrostriatus

5. April 2017

Until now we were able to present this beautiful tetra – which has been described scientifically only in 2015 – to you only as a very rare bycatch (see http://www.aquariumglaser.de/en/fish-archives/hemigrammus-rubrostriatus/). But finally we managed a larger importation of that beauty from Venezuela. The fish are about 4-5 cm longer, adult and in full colour. They belong obviously to the most attarctive small species of tetra at all. The tail pattern is similar to the Head-and-Tail-tetras (Hemigrammus ocellifer and H. falsus), but the bright tailspot is blood red instead of yellow; the gorgeous red horizontal stripe is as bright as in Hyphessobrycon amapaensis and the golden-yellow belly shines like that of the Kitty tetra, Hyphessobrycon heliacus. Additional the red and white pattern of the fins is very nice in H. rubrostriatus. If a tetra would have been designed as an ideal community fish, this is it!

If it comes to the requirements of the fish: Hemigrammus rubrostriatus – we suggest Red-Stripe tetra as a common name – is as easy to keep as its congeners that live in aquaria for almost a century now. Any tap water will do for keeping. However, soft, slightly acidic water and the addition of humic acids from dead leaves, peat, alder cones, roots etc. will increase the intensity of the colours.

For our customers: the fish have code 257473 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Hoplocharax goethei

17. March 2017

Do you know this species of tetra? It is remarkable in various points of view. Maybe we should start with the curious specific name, goethei. Is this fish dedicated to the universal German genius, Johann Wolfgang von Goethe? Sadly not. It is dedicated to the controversial eugenicist Charles Matthias Goethe (1875-1966). But that is only a subsidiary fact, isn´t it? The tiny fish – it attains a maximum length of only 3-4 cm – looks at the first glimpse a bit like the probably commonest species of small tetra from Amazonia, Hemigrammus bellottii. However, it belongs to a completely different relationship. In fact, Hoplocharax goethei is closer related to the predatory tetras like the freshwater barracudas of the genus Acestrorhynchus than to Hemigrammus and Co. One cannot see it with the bare eye, but the teeth of H. goethei are not multicuspid edges like in most small tetras, but elongate, sharp fang-like teeth! Nevertheless this miniature predator is absolutely peaceful against tankmates of similar size. Maybe the fish feeds in nature on newly hatched fry, who knows? In the aquarium, H. goethei feeds readily on any type of usual fish food, even dried one.


Until now, Hoplocharax goethei was imported by chance only, as an unplanned by-catch of cardinals, mainly from Colombia. Usually only very few, most often single specimens came in. Now we were able for the very first time to import a little larger number of the unusual tetra from Venezuela. Maybe now it is even possible to breed the fish? 

For our customers: the animals have code 258853 on our stocklist. Please note that we exclusively supply the wholesale trade. Available in small numbers only!

Text & photos: Frank Schäfer

Phenacogrammus interruptus Albino

15. March 2017

Currently we receive beautiful cultivated albino Congo Tetras (Phenacogrammus interruptus) from Southeast Asia. Like in all true albinos the eyes of the fish are red due to the genetically caused lack of black body pigment (melanin). In many other species of fish albinos have a uniform whitish, yellowish or flesh-coloured body. Not so in the Congo Tetra. The iridescent colours of the body of that species are also extant in the albino variety. This makes the fish look so extraordinary nice.

Lexicon: Phenacogrammus: from ancient Greek, meaning “with tricky line”; this refers to the fact that the shape of the lateral line cannot be used to distinguish this genus from other genera. interruptus: Latin for “interrupted”. Refers to the shape of the lateral line.

For our customers: the fish have code 159454 on our stocklist. Please note that we supply exclusively the wholesale trade.

Text & Photos: Frank Schäfer

Hemigrammus coeruleus

3. March 2017

Among the most sought after species of tetra is Hemigrammus coeruleus. The species attains a maximum length of about 6 cm and look even pretty in the regular coloration – a bit similar to the well known glowlight tetra (Hemigrammus erythrozonus). But when the fish come in breeding condition, they look really spectacular! The males become so deeply red that one might think to see a different species! Sadly the fish is hardly available as wild collected ones. We recently obtained only 5 specimens! But we expect in the very near future a good number of German bred ones.

For our customers: the fish have code 256314 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text: Frank Schäfer, photos: Frank Schäfer, Peter & Martin Hoffmann (male in breeding condition)

Hemigrammus bellottii – the Golden Glowlight Tetra

24. February 2017

The common Glowlight Tetra, Hemigrammus erythrozonus, originates from Guyana. The species is very popular in the aquarium hobby. But only few hobbyists know that there does exist a comparatively close relative of the common Glowlight in Colombia and Brazil: the Golden Glowlight, Hemigrammus bellottii. The latter is often found along with the Cardinal (Paracheirodon axelrodi) and it is a very nice contrast fish to the Cardinal in a community tank. Usually the Golden Glowlight is imported only by chance, as a by-catch of the Cardinal. But from time to time we manage to import a larger number of the pretty fish. The fire red upper eye and the golden stripe look very nice in a rather dark equipped tank.

For our customers: the fish have code 256032 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer