I have an SCA 80g (32x24x24) and am currently running two 6105s on my Sea Sweeps with 12v jumper. The tank is only 10 months running and not heavily stocked yet, but planning on a mixed reef. Today I noticed two sps frags starting to stn and I think it's because the frags are too close to the powerheads and getting too much flow. What powerheads would you recommend to put on my sea sweeps.