HOla
pues es que la imagen que colocan en la tienda estan en lo cierto.. es decir... si es esa especie.. sencillamente no la coloración que esperas tener... si se han colectado algunas en estado silvestre, pero los alemanes "fijaron" este gen negro y ellos las reproducen.. inclusive les pusieron un nuevo nombre cientifico...
![:o](http://planetacuario.com/foro/public/style_emoticons/default/ohmy.png)
.. en pocas palabras ambas especies tiene que ser geneticamente identicas solo cambian en su coloración, aqui la historia:
Corydoras sp. Venezuela Black is a black fish resembling Corydoras aeneus, but with a black-violet body and violet-red fins when viewed against the sun or under an intensive light. It is a relatively new fish in Czech republic and is currently bred on a mass scale due to huge demand abroad. The upper picture is a typical sp. Venezuela Black.
The origin of this fish is not clear to me. Several months ago I saw them at a breeder in Prague, and I eventually decided to buy them, because I was impressed by their colouring. Yet in the meantime, I discussed with another breeder, who told me that he had big adult fish of the same species, so I decided to prefer adults instead of little fish. He also told me that these fish are not a natural species, but a genetic variation of Corydoras aeneus that was "made" by an East German breeder a long time ago.
However, the fish that he sent me were a big disappointment for me: They differed markedly from the nice "Blacks", especially in body form, and I was really so disgusted by them that I almost immediately sold them to a nearby shop. Basically, they were too large for me, and their body was so long that they resembled a slimy black eel.
Now I have the nicer Blacks from the Prague breeder. They haven't spawned yet, but they should spawn very soon. Due to, the black colour form was produced by German aquarists in the 90's.
Los alemanes le llaman
Corydoras schultzei en honor a Otto Schultz, quien las reprodujo...digamos en terminos simples.. "es la misma gata, solo que revolcada en lodo":D
SAludos:ok: