sorry my mistake.Inka's picture is already answered as Sphaerichthys vaillanti which is indeed correct. Danyal's picture is showing a loach, not a gourami.
Crenicara? I know this fish as dicrosssus maculatus, but I'm not up to date on all this nomenclature mess :headshake2:, so I'll give it to you. Your turnCrenicara maculata?