Iridescent shark (Pangasianodon hypophthalmus, ex. Pangasius hypophthalmus) is a large fish that resembles a shark in some way, which if fact is the reason why the fish is called so. In South-East Asia this fish is grown to cook it, but in the USA and Europe this fish is often kept in tanks.
Scarlet badis (Dario dario) is a small fish from Badidae family from India. This is the least known species from Perciformes kind.
Peacock gudgeon or peacock goby (Tateurndina ocellicauda) has smart and vivid coloring, it is absolutely unaggressive and not demanding fish. Isn’t it a perfect choice for a community tank? Unfortunately, it is not quite renowned among aquarists. Maybe this happened due to the lack of information about it. So, let’s fill this gap.