So, a coworker's son is giving me his 90g tank in the near future. I was reading the dimensions of it, and it's quite deep - if I remember correctly it's 48L x 18D x 24T, so I'm thinking about using it as an angelfish tank. I've never had angelfish before, but the depth of this one seems well suited. Any opinions? Would something like that hold 4, yet give enough space (with visual barriers) in case two paired up? I understand they can be aggressive when they form a pair.