Nannocharax

There are currently 25 described species in the genus Nannocharax, these forming a monophyletic group with members of the very similar Hemigrammocharax. None can be described as particularly common in the hobby but N. brevis and N. fasciatus are the most often seen. They are notoriously tricky to identify though, and it's quite possible that more than two species are being sold under these names. In nature these fish occupy a similar ecological niche to the South American darter characi...