Tag Archives: Corydoras

Corydoras “punctatus” Nanay

21. December 2022

There is a saying: “The Internet forgets nothing”. This may be true, but books are even more durable, especially if errors have been printed in them. These are often so stubborn that one could almost despair. This is what happened to a very pretty armored catfish that occurs in huge numbers in the tri-border area of Peru-Colombia-Brazil, i.e. in the upper Amazon. Because it is so common, it was also brought to Europe early, to Germany in 1935, when it was misidentified as Corydoras punctatus (which is a completely different species that looks similar to C. julii), an error that was carried over into the most important identification book on exotic ornamental fishes at the time, the “Arnold-Ahl”, in 1936. Since then, this error has apparently stuck, and exporters still send this species (and some close relatives that look very similar) under this misnomer. In reality it is a species from the close relationship of C. agassizii and C. ambiacus. Since this group of species is scientifically very poorly researched, nothing can be said for sure, but it is very probable that this particular Corydoras is scientifically still undescribed and best named Corydoras sp. aff. agassizii.

The species is, as already mentioned, widespread in the entire upper Amazonas drainage up to at least Manaus in Brazil and appears here in huge swarms. A particularly nice variety comes from the Rio Nanay in Peru, which we currently have in stock. The Rio Nanay is a left bank Amazon tributary and about 450 km long. It is considered a blackwater river. Concerning the water values and the care Corydoras “punctatus” Nanay is however everything else than demanding. Only breeding has not been successful yet, which is probably due to the fact that the animals spawn at night and are strong spawn predators, which is why the egg blessing has already landed in the stomach of the parents before the breeder notices anything.

For our customers: the fish have code 242053 on our stocklist. Please note that we only supply wholesale.

Text & photos: Frank Schäfer

Corydoras cf. brevirostris CW 27 Highfin

12. October 2022

We received a limited number of this extraordinary Corydoras from Colombia. The overall appearance is very much alike Corydoras brevirostris (formerly known as Corydoras melanistius brevirostris), but CW 27 has a much much higher dorsal fin and the “glowspot” on the nape is much brighter.

For our customers: the animals have code 224954 on our stocklist. Please note that we exclusively supply the wholesale trade.

Text & photos: Frank Schäfer

Corydoras melanotaenia

9. September 2022

Because of its bright yellow fins Corydoras melanotaenia surely belongs to the most beautiful armored catfishes at all. It is, so to speak, the long snout to the bronze cory type, which can be found throughout South America. In contrast to its ubiquitous cousin, C. melanotaenia is an endemic of Colombia, i.e. it occurs exclusively there.

The origin of C. melanotaenia, which was already scientifically described in 1912, was unclear for a long time. It is said that the animals on which the first description was based were caught in the Rio Magdalena basin, where later expeditions searched for them in vain. Already in 1922 it was assumed that the type specimens were sent to London via Honda (this place is located at the Rio Magdalena), but in reality they came from the Rio Meta basin. In fact, to date, not a single species of Corydoras has been reported from the Rio Magdalena and it is generally agreed that C. melanotaenia comes from the Rio Meta basin.

This Corydoras grows to about 5 cm and has all the positive characteristics that make Corydoras so popular in the aquarium: a lively and completely peaceful nature and uncomplicated keeping.

For our customers: C. melanotaenia has code 235503 on our stock list. Please note that we supply exclusively to wholesalers.

Text & photos; Frank Schäfer

Corydoras leucomelas

2. September 2022

Corydoras leucomelas belongs to the frequently imported species of its genus. Typical characteristics of the round-nosed species are a strongly pronounced eye band, the coloration of the dorsal fin in connection with the black dorsal spot located at the beginning of the dorsal fin, a vertical black band at the end of the caudal peduncle and the stripes of the caudal fin. The body markings, on the other hand, are so varied in animals up to about 4 cm in length that each individual can be recognized individually by them; only fully grown fish develop a uniform pattern of black spots. The maximum size of the species is 5 – 5.5 cm.

Main export region of Corydoras leucomelas is Peru, where is also the type locality (i.e. the place where the type specimen used for the scientific description of the species was collected): Yarina Cocha. However, C. leucomelas is quite widespread in the upper Amazon watershed, eg in Colombia (Rio Orteguaza) , Bolivia and Ecuador. The species looks especially pretty when kept in a shoal of 10-15 specimens. The swarm cohesion of C. leucomelas is much more pronounced than in many other armored catfishes and thus often results in the very beautiful picture of such a troop foraging through the aquarium.

For our customers: the animals have code 233503 on our stocklist. Please note that we only supply wholesale.

Text & photos: Frank Schäfer

Corydoras loxozonus

11. August 2022

This Corydoras belongs to the most attractive and at the same time easy to keep species of the large genus Corydoras. One should only consider that C. loxozonus – it originates from the Orinoco and its tributaries – likes it warm; below 24°C the temperature of the water should not sink in the long run.

At present we can offer beautiful wild catches. Among them there are always specimens with different coloration, which in the past led to confusion with other species. Today we know that C. loxozonus can be very variable in coloration. Thus, according to current knowledge, even such completely different looking animals as C82 and C83 belong to this species.

For our customers: Corydoras loxozonus has code 233703 on our stock list. Please note that we only supply to wholesalers.

Text & Photos: Frank Schäfer

Corydoras narcissus and Corydoras bethanea (= C. sp. “Narcissus II”; CW6)

29. July 2022

The changed export regulations in Brazil, which have been valid for some time, have now made it possible to import Corydoras narcissus again after a long time.

Corydoras narcissus is a beautiful, relatively large armored catfish. The maximum length is given with 10 cm. The species comes from Brazil, more precisely from the drainage of the Rio Purus. Like all saddlenosed Corydoras, C. narcissus is less gregarious than other Corydoras. Breeding requires large aquariums. When breeding approaches, it should be noted that many saddlenoses can become very aggressive towards each other when in a mating mood; breeders have even reported deaths. In “normal” care, however, such a thing does not happen!

The unusual name was given to the beautiful and otherwise very peaceful fish because the collectors who gave the animals to the first describers suggested to them that they should name the new species in their (the collectors’) honor. However, the first descriptors did not want to put up with this impudent encroachment on the freedom of science and therefore named the armored catfish after the Greek demigod Narciss, who fell in love with his own reflection and whose name has since been synonymous with self-indulgence.

From Peru comes a second, similar species that has only recently (2021) been scientifically described: Corydoras bethanae. In the hobby, it has therefore been referred to as C. narcissus II or CW6, while the actual species has been referred to as C. narcissus I. This is somewhat misleading, as the two species are not particularly closely related and may even be placed in different genera once Corydoras are scientifically revised. Corydoras bethanae is a longnose, does not grow quite as large, is more flesh colored (unlike the whitish C. narcissus), has a transparent dorsal fin spine (black in C. narcissus), and the dorsal band ends at the eye (runs across the snout in C. narcissus).

Therefore, one can easily tell the two species apart even without knowing their origin.

For our customers: Corydoras narcissus has code 237104, C. bethanae 237204 on our stocklist. Please note that we only supply to wholesalers.

Text & Photos: Frank Schäfer

Corydoras desana

22. July 2022

There are still Corydoras species which are imported so rarely and in such small numbers that they belong to the unfulfilled dreams of armored catfish lovers. One of the most attractive species of this group is certainly the “Tukano Longnose”, as it was first named, then it received the code CW011 and finally the species was scientifically described as Corydoras desana.

Of course these animals are not rare in the real sense of the word in nature, but they live individually and are very shy, so that in a period of time, when you can catch thousands of Corydoras tukano, only one or two specimens of the Longnose go into the net. 

For our customers: the animals have code 245635 on our stocklist. Please note that we only supply wholesale.

Text & photos: Frank Schäfer

Corydoras pulcher

28. June 2022

The species name pulcher means “the beautiful one”. And that actually says it all. We can currently offer this really beautiful armored catfish, which, along with a whole range of species with which it can easily be confused, comes from the Rio Purus drainage in Brazil.

Corydoras pulcher grows to about 6-7 cm in length. It is distinguished from similarly colored species by the combination of a long, pointed snout and cream-colored dorsal and pectoral fin spines. One should beware of being stung by these spines, it hurts a lot. But the peaceful armored catfish would never actively use their spines to attack. 

For our customers: the animals have code 241704 on our stock list. Please note that we only supply wholesale.

Text & photos: Frank Schäfer

Corydoras armatus

17. June 2022

In the last years we reported more often about Corydoras imports, which are similar to Corydoras armatus (= sp. aff. armatus or cf. armatus), but not identical. Now we received again the “real” C. armatus from Peru. The enormously high dorsal fin is really an eye-catcher. In addition it is always carried tautly upright, which reminds involuntarily of a group of dwarfs with a pointed cap.

The care of C. armatus, which grows to about 5-6 cm long, is the same as for other armored catfishes, but there are two special features. Firstly, C. armatus is one of the most social Corydoras and should therefore be kept in groups of 5 or more. Single animals do not feel well! And second, this species is somewhat sensitive to high water temperatures. The range between 22 and 26°C is correct, but for most of the year the lower value should be used as a guideline.

For our customers: the animals have code 222105 on our stock list. Please note that we only supply wholesale.

Text & photos: Frank Schäfer

Corydoras sp. CW 51

18. May 2022

The “New Pandas” from Colombia belong to the most attractive and at the same time easy to keep and breed corydoras of the last years. There are two forms/species, CW 49 and CW 51, which differ clearly in the shape of the black saddle spot. For CW 49 please see here: https://www.facebook.com/page/119893808211837/search/?q=cw49, for origin etc. please see here: https://www.aquariumglaser.de/fischarchiv/corydoras_sp_cw_49_und_cw_51_de/.

Currently we have beautiful CW 51 in different sizes in the stock. The extension of the saddle patch towards the belly edge is individually quite different. In some specimens the saddle patch actually extends to the belly edge, in others only just to the middle of the body. 

For our customers: the animals have code 240183 (lg) and 240184 (lg-xlg) on our stock list. Please note that we only supply wholesale.

Text & photos: Frank Schäfer