Ok so I am getting a new tank this weekend, it is a 90G with a overflow. I am going to be moving my peacocks to it. The are currently in a 55g. Before I move them I need some feedback and some ideas on what i should do in the tank. I have two pieces of holey rock right now. I am wondering if I should change from the black gravel that I have to something else? I want to build a nice rock formation in the tank, so can you great people give me some ideas.