Here's what I'm thinking-I'll build a tank 7 feet long by 3 feet wide by 3 feet deep, and I'll stock it with a Tigrinus catfish and a Scomberoides, since they both require a high level of current and aeration. Can you help me think of any other fish I could stock it with? Is it even a good idea to mix a Scomb with a Tigrinus cat?