RED EYE GHOST TETRA
This is an unknown fish, which we found at Pier Aquatics in Wigan, and which I have been desperately trying to find anything on for weeks now. Hans Evers has tentatively named it Heterocharax sp. ‘Rio Nanay’. After a lot of trawling, where I was torn somewhere between Longochenys and Heterocharax, the closest I’ve found is a single batch of red, ghosty fish that went to the Far East, branded as Heterocharax sp. ‘Blue Neon’ but were neither blue nor neon. So, I’m deferring to Hans’ name — H. sp. ‘Rio Nanay’ it is…
They came to the UK via Peru, and as far as I know, Pier is the only place that has had this species in the UK. I recall them being marked as ‘Red eye ghost tetra’.
Beyond that, I really cannot tell you anything about them. They look like they have some fine teeth on them, so I’d keep them away from flowy fins. Everything else is guesswork based on what we know of other Heterocharax species.