DO I have enough flow?

[banditpowdercoat]

I know it's been covered before, But I can never seem to find what I need easily with the search.
My 150g, I have a Dolphin Amp Master 3000 for Closed Loop 1.5" plumbing so 3000 GPH, running through a OM-4 way. And the Sump return is a Little Giant 4 MDQX throttled back and running a reactor also, so 900GPH?

I want to start keeping some SPS. But lately, not having luck. Could I use more flow? I'm toying with the idea of a wavebox, but not sure how that will work with my coast to coat overflow. It's pretty close to the top of tank.