Just looking for input. I know a bunch of things can turn your SPS white. This is a 36 wide, 12 deep, 24 high - 45 gallon. Had all SPS in the tank for about 2 weeks. Everything looked normal yesterday, then 24 hours later looks like this. Feed reef roids every 2-3 days. Running 2 MP10s scheduled on reeflink. Max flow is 35% with one power head in anti sync. I really don't think its getting too much flow. Sitting at least 12 inches from the left power head and about 3 inches further back from center of power head. No other SPS looks to be having issues. I have a Reefbreeders Photon V2 32 inch. I am using a Seneye meter to check PAR. All the SPS along the very top have a recommended PAR of 300-400 (As per the seller who I have purchased tons from, but he has T5). I originally had everything in the 340-400 for nearly 2 weeks. I suspected the PAR may be too high so Tuesday we turned down all channels by 5%. Wednesday night turned everything down by another 5%. It brought everything down to about 240-280 PAR. These are max par values at 3PM. I am running on a schedule starting at 10 AM, peaking out at 3PM with max par, then down to moon mode by 8PM. Moon mode from 9PM till 1 AM, then OFF till 8 AM. Everything is dosed twice a day for minimal drop. Salinity: 1.024/25 Temp: 78 average (77-79) Alk 9.0 Mag 1420 Calcium 450 Phosphates 0 (It was .02 a week ago). Any ideas here? As you can see we have a wide variety of stuff, all doing very well.