One other thing: are there common [English] names for any of these guys? Something I've noticed is that you Finns have common names for fish English-speakers have never even seen...
Also - are there any proposals for how we should break this list down when it becomes too long to simply be a quick-reference guide? I think it should be a functional distinction, i.e. by preferred water parameters so people considering community tanks can more easily find neighbors for their fish, but I'm also open to suggestion.