I have a 10-gallon standard nano tank. For the first couple of months, I had two 80gph water pumps just to keep water circulating. Now that I am adding corals I plan on upgrading to powerheads. I already have 2 Aquaneat wavemaker, water circulation pumps rated at 480 gph. At first, everything was getting blown everywhere with just one but I added the second pointed right at the first at a slight angle out and it creates a nice random flow throughout the tank. My two clownfish swim normally all over the tank and the sea fans are open all over the rockwork but I am still worried the flow is too strong especially on the rockwork right under the powerheads. I am keeping just LPS and mushrooms. If they are too strong is there a way to lessen the flow so I can still use them?