Agreed with this, depends on your coral that you want to keep. Softies/some LPS should be fine, SPS no, it will not be enough. Maybe birdsnest or very easy sps, but even then you'd probably have to run the mp10 at to high a speed really for that size of a tank.Well I think it depends what kind of corals you want… might not be enough for high flow SPS. What are you trying to keep?
Flow doesn’t matter so much for fish, especially anything you’ll keep in a 30 g.