Janne,
The fish Mikael has photographed at 1.5cm and 5cm TL are the SAME FISH. The other fish photographed here was mine and it also did the same thing.
As it says on the cat-elog page, it is possible the
isn't correct and that is just a juvenile
. However, no keepers have reported this. I agree that absence of evidence isn't evidence.
Perhaps I've been looking at the pictures too long, but I see a concave head profile in the Parotocinclus and not in the Hypostomus at the same size.
We know they are both Peruvian (Rio Ucayali?) species. Is it possible the two have evolved similar colouration for mutual benefit until the Hypostomus grows up? I've observed, in nature, that very young
live where you would expect to find
- it's not impossible?
Now we just have to hope EVERYONE who buys what they think are Parotocinclus keeps an eye on them from now on!
Jools
Jools