Hi Everyone, I have a Red Sea Reefer 350 tank (roughly 90 gallons total) and have had issues with color on my SPS. My corals have displayed no color and barely any growth - they're very pale in color.. I just checked my phosphate levels using Hanna and they were 0.00. I am carbon dosing with PONOX3 but still have algae issues with detritus on the glass, some on the rocks, and a lot in the sump. These two corals are my worst examples. One is a strawberry shortcake acropora and the other is a red dragon acropora. I used my iPhone to take the pictures so of course, the quality is lousy. I feel it may be too much light since they are at the top of my aquarium but have lowered my two Radion XR30's to 40%. Both of these corals have been in my tank for almost a year and half. Please see the photos below.