We have 3 tanks. A reef, a seahorse and a FOWLR. We fing ourselves watching, playing "chase the lazer dot" the fowlr most. Puffers are so friendly and we also have a tang ,korran angel,tusk,triggers in with them. They chase each other through tunnels and overhangs and are just fun to watch and play with. You almost need a reef and a fowlr to experience all aspects of the hobby!