I finally have my tank adjusted and went for my fish fish today! I bought 5 Zebra Danios from my local fish store. I have named them (although it is hard to tell them apart) Achebe, Russell, Bobo, Zany, and Bristol. They seem okay, I acclimated them slowly. They are swimming fervently at the very top of the tank. Will they eventually settle down and swim lower? I am excited and hopeful of sucess!