Use TWO smaller return pumps if you have the sump space. I've had a new Sicce ADV 7.0 for a few months now and it is amazing. The power this has for 55w is unreal. I believe it's a non-controllable DC pump. Two of these would probably be too much flow but you could add a second smaller and or controllable. Reef Octo vote, I've had three. Also agree with go a bit bigger than the 150int.