Once my tank cycles I'm looking to get a total of 5 red-eyed tetras, 3 cory cats, and 1 other type of fish. I originally was thinking about 5 neon tetras, but that is really going to push my limit on my already close to full 20 Gal. I stumbled across a Dwarf Gourami in the pet store the other day and for the first time stopped to take a closer look. Under the normal light they look rather plain from certain angles. But all of a sudden he turned and I saw the beauty of it's iridescent body! The problem is at a 3" adult size, getting 2 would over stock my tank as badly as the neon tetras would. So my question is would a single Dwarf Gourami (probably would be the blue one) be happy without any others of it's kind in the tank?