So I've been contemplating setting up another fish tank... I've got a 60 gal but I was thinking of starting off small for now since I may be moving and eventually move the fish into my 60 gal. I'm gonna start off with a 20 Gallon and I really want a community tank with live plants. I'm gonna go with a few angelfish initially, but how many should I keep in the 20 gal and what other fishmates could I consider?