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Astacus astacus

Xyliphius cf. lepturus23.06.2016

For the first time ever we could import this extremely odd species of banjo catfish. The eyes are reduced to very small, black spots. This is a hint either to a strictly nocturnal way of life or that the fish live burried. We obtained our specimens from Venezuela. Most probably they belong to the species X. lepturus, but we cannot be sure about that.

The genus Xyliphius has been established in 1912 by Carl Eigenmann for the species X, magdalenae from Colombia. Sadly Eigenmann used two different kinds of typing for the new genus simultaneously, namely Xiliphius and Xyliphius. This led to some confusion among later workers. Currently the typing Xyliphius is the accepted one.

There are 7 described species in the genus. They are represented in the museum collections of the world by only quite few specimens. The maximum length reported for members of the genus is between 8 and 15 cm. This means that our 5 specimens should be adult, as they have already a length of 8-10 cm. Now, for the first time in history, the behaviour of these unusual creatures can be studied.

For our customers: the animals have code 203464 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Oreochromis niloticus21.06.2016

There is most probably no other species of fish that is so much loved on the one hand and so much hated on the other: the Nile Mouthbrooder, often called simply „Tilapia“. As a food fish this omnivorous species - plant matter forms a large part of the diet - can be cultured even in the poorest countries of the tropics. Here the Tilapia changes worthless stuff in precious fish protein. But specimens that escaped in the wild or that were released became worldwide the most serious alien pest species of freshwater fish at all.

Oreochromis niloticus is only very rarely kept in private aquaria. The fish can grow to a maximum size of about 50 cm, but is mature already at a size of 6-8 cm. It is a maternal mouthbrooder. Currently we can offer nice, 6-8 cm long specimens that were bred by European aquarists.

For our customers: the fish have code 555503 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Pseudanos winterbottomi and Anostomus ternetzi21.06.2016

We received this nice headstander in the past years only very occasionally in single specimens as bycatch from Venezuela. Most often the specimens were intermixed in shipments of Anostomus ternetzi or Pseudanos trimaculatus. Finally we were able to import directly a number of the beautiful species. We have two sizes in stock, young ones (4-6 cm), and almost fully grown ones. As we keep the small ones altogether, we made the experience that they are quite peaceful against each other. Even fin damages do not appear. However, at least 10 specimens must be kept together, otherwise they start immediately to fight. The large ones are kept singly in our fishhouse. The youngsters also like to swim in mixed schools along with Anostomus ternetzi.

The golden striped headstander, Anostomus tenetzi, has a very wide distribution in South America. It is recorded from Brazil, French Guyana, Guyana, Suriname, and Venezuela. The specimens on which the original descritption based, originated from Venezuela, and we were able to import them from there once more.

This beautiful fish is among the most peaceful species of headstander at all. It stay smaller than Anostomus anostomus. The latter can become more than 16 cm long, while A. ternetzi attains a maximum length of about 12 cm only.

In very young specimens of A. ternetzi the broad band along the body has wavy edges; it looks as if it would be composed of many, merged spots. Later these edges become straight in many specimens, but in others it stays wavy. Possibly this is a secondary sexual character. It is known from many species of fish that the female´s pattern is more similar to the juvenile pattern than in males.

Pseudanos winterbottomi and Anostomus ternetzi obviously live together in their natural habitat.

Pseudanos winterbottomi can reach a length of about 15 cm; so it belongs to the group of medium-sized headstanders. The experiences we made with the formerly imported single specimens showed that this species can be kept like all other headstanders: they love well planted, large aquaria with a lot of hiding places.

The chemical composition of the water is of no meaning. One should keep these fish at temperatures between 26 and 28°C. The best company are other headstanders, like the already mentioned species, but P. winterbottomi can also be kept with other, peaceful tetras, cichlids and catfish. One should keep in mind that headstanders need some vegetables in their food, otherwise they will destroy waterplants. The species accepts readily any usual food for ornamental fishes.

For our customers: P. winterbottomi has code 283742 (4-6 cm) and 283744 (8-10cm) on our stocklist. Anostomus ternetzi has code 206001 on our stocklist. Please note that we exclusively supply the wholesale trade.

Lexicon: Pseudanos: means "false Anostomus". winterbottomi: dedication name for Richard Winterbottom, curator emeritus for ichthyology at the Royal Ontario Museum, Canada. Anostomus: means "the one with the upturned mouth". ternetzi: dedication name for Carl Ternetz (1870-1928). Pseudanos: means "false Anostomus". winterbottomi: dedication name for Richard Winterbottom, curator emeritus for ichthyology at the Royal Ontario Museum, Canada.

Suggestion of a common name for P. winterbottomi: Striped Bambi Headstander

Common name for Anostomus ternetzi: Golden Striped Headstander

Text & photos: Frank Schäfer

Pseudoloricaria sp.21.06.2016

Yesterday we introduced to you a brandnew „Hemiloricaria“ and mentioned that the determination of the species is very doubtful. Now we were able to take pictures of the ventral side of the animals and the enigma was solved: these fish are no Hemiloricaria at all, but members of the genus Pseudoloricaria! In Pseudoloricaria the lower lip has a different shape compared with Hemiloricaria, and the bony plates on the belly are also different arranged. Pseudoloricaria belong to the mouthbrooding whiptail cats (Hemiloricaria are cave brooders). The eggs of Pseudoloricaria are spawned on a dead leaf. The male attaches this leaf with the eggs on its lower lip and carries this along until the young fish hatch.

Currently there are two species of Pseudoloricaria known, one scientifically described (P. laeviuscula) and one still undescribed. The latter is presented in WelsAtlas Vol. 1 and named there provisionally Pseudoloricaria sp. „Rio Negro“. However, now we know that the fish has a much wider distribution in Amazonia than only the Rio Negro. Ingo Seidel is pretty sure that our recent importations belong to the still undescribed species. We take the opportunity to thank Ingo and all the others very sincerely for discussing the identity of our new fish on facebook and instagramm.

Although our fish are already sexually differentiated - they are about 12-14 cm long - they will most probably grow for more than double of that, because both species Pseudoloricaria proofed to grow as large as 30 cm or even more.

Text & photos: Frank Schäfer

Moenkhausia phaeonota21.06.2016

This small (about 4 cm) species of tetra originates from the Mato Grosso region 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 today… Sadly this charming tetra is only very rarely available. If one observes the life fish the behaviour reminds one in that of croaking tetras (Stevardiinae). We are able to offer this rare tetra currently.

For our customers: the fish have code 269003 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Papuligobius uniporus15.06.2016

For the first time ever we were able to import this interesting freshwater-goby from Vietnam. The species and the genus have been described only in 2003. Papuligobius uniporus attains a maximum length of about 7.5 cm. There exists only one other species in the genus, namely P. ocellatus, which has been described already in 1937, but which obviously never appeared in the aquarium hobby. The easiest way to distinguish the two species is the coloration of the caudal fin, which is striped in P. ocellatus, and the coloration of the basis of the pectoral fin. Here P. uniporus has three eye-spots, P. ocellatus only one.

Against conspecifics P. uniporus can be a bit quarrelsome. The species has the ability to change the coloration drastically. Most often they look almost deep black, but they can also show a light stripe or a marbled pattern.

These gobies have no special demands regarding water chemistry. They feed readily on any type of frozen of life food that fits the mouth.

For our customers: the fish have code 441076 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Pseudomugil sp. paskai Red-Neon has been described scientifically15.06.2016

Pseudomugil sp. paskai Red-Neon has been described scientifically

Pseudomugil sp. "paskai Red-Neon" has been imported for the first time in 2012 and is for sure one of the most spectacular discoveries of aquarium fish in the millenium. Since the first importation the fish has been well established in the hobby and proofed as a beautiful, peaceful, and hardy ornamental fish.

However, there was a scientific name missing. Preserved specimens - they lack usually all colours - look very similar to Pseudomugil paskai, but this fish has totally different and much duller colours in life.

Now the species has been described scientfically in a proper way and here is the correct and valid name: Pseudomugil luminatus.

For our customers: the fish have code 446452 on our stocklist. Please note that we exclusively supply the wholesale trade.

Allen, G. R., Unmack, P. J. & R. K. Hadiaty (2016): Pseudomugil luminatus, a new species of Blue-eye (Teleostei: Pseudomugilidae) from southern New Guinea, with notes on P. gertrudae. Fishes of Sahul 30 (1): 950-961

Text & photos: Frank Schäfer

The latest golden nugget: Nematobrycon palmeri15.06.2016

The emperor tetra, Nematobrycon palmeri, is kept and bred for a long time already in aquaria. The animals in the trade are almost exclusively bred ones. So it was only a question of time when the first sports would arrive. A very nice sport of the emperor tetra is the xanthoristic, golden mutant. The genetic reasons for that coloration are the same as in the goldfish, namely the lack of dark pigments on the body. Nevertheless the fish are no albinos. Despite the colours these golden emperors do not differ from their wild coloured cousins in respect of the demands in the aquarium.

For our customers: the fish have code 272652 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

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