Im thinking 3 bowfin 4 gar 5 peacock bass and if I can get my hands on a chain pickeral one of those. Tank dimensions will be 12'x 3' or 4' x 2'. Three foot wide come to 540 gallon 4 ft wide comes to 712.. All depends on price in the quote. But in a tank these sizes will these fish get along, as long as sizes are comparable?