My 220 has a 3600 gph pump. Some of it is looped in the sump with additional mech. filteration, though. It probably cycles close to 3000 gph to the tank.
i once hooked a penguin 150 up to a lil 1 gallon single betta display tank ( obv no betta was in it) but with 150 turn over the only thing that did well was a goldfish.... and some snails