I'm a teacher and I have a 57ish gallon tank setup in my classroom. So far I have 2 Dwarf Gouramis and 2 Angelfish. I'm just looking for recommendations for what else I can get, I'll probably end up getting a couple of catfish of some sort, but besides that does anybody have any good ideas? I thought about getting a blue ram but I'm just not sure. I want to get as much variety as I can in this tank since its for my classroom.