dimensions are 72x20x25... weird sized tank. Wanna do a tank of datnoids but would like to maybe add a lungfish... Was planning on doing some rays but I want to be able to keep everything in the tank basically for life... So what would be the coolest lungfish that would fit into my tank? Could I keep lungfish with any other cool bottom dwellers like polys? any advice or point in the right direction would be nice 