I am planning on starting my second aquarium and was wanting to know what i should put in it. it is a 20 gall high and I want it to be a freshwater tropical community tank. i like the bolivian ram so I want some fish compatable with them if at all possible. If I can keep the bolivian rams in my tank how many should i do and what fish could be their tank mates. If I can not keep them what other centerpiece fish could I have besides gouramis, I already have 2 of those in my other tank. Never mind on the Bolivian rams I ment German blue rams.