I haven't been on in like a really long time, but I've decided I want a fish tank again, since I never wound up getting one.
I'm thinking about a 20 gallon, and I have a couple ideas for stocking but I still have space left.
My first idea is this:
6 Celestial Pearl Danios (or...
Agreed with Jaysee. You could even get the glo danios (if you've seen them)...they're basically neon colored zebras, and they school together since the glo danios are basically just genetically altered zebras.
navarunroy: perhaps you have a flame dwarf gourami? They can be aggressive, and are often sold as honeys. They are just a color morph of your typical dwarf gourami, not a different species, and therefore it would make sense for the little guy to have a bit of a 'tude.