Hi I have just gotten a 20 gallon high tank. I will be putting in live plants as soon as I get some. But I am not sure yet about what fish I want, right now I am thinking about 2 Angelfish and some Cardinal Tetras, would that be okay? If not what are some fish that would work well in a 20 gal. community tank? I really like Cardinal Tetras, Zebra Danios, Swordtails, and Angel fish. Also what are some hardy fish that I could get before the nitrogen cycle is complete?