I did change out my power heads and now run two Hydor Koralia Evolution 1050 plus the two Aqueons. The Aqueons are not connected to the Smart Wave because they "pop" when they start so they are running constantly. The two Hydors are a ton of flow, and I wonder sometimes if it's not too much. I will say however that my Torch coral seems to love the moderate flow that it gets from the Hydors.
As far as color goes, I added two 250w Hamilton metal halides using Phoenix 14,000k bulbs. A few days after adding the MH my timer crapped out so one is on the way via mail. I hope that once I get my lights situated color will increas in the SPS as well as the LPS. Unfortunetly the MH add a lot of heat to the system but I've got a fan now and will make a bracket for it so that it will help cool the system. I'm hoping that once the new timer gets here , the fan installed and the MH running on a schedule, my corals will repsond well.
Till next time, happy reefing.