My SPS are doing fine they just look faded. My birds nest coral is doing amazing I have seen amazing growth with it, and my montipora is still opening polyps but it is white. i know for a fact light is not the problem because they both have high light they just don't look as colorful as when I bought them. My water parameters are, Calcium 400ppm, Alkalinity 143.2 ppm, Nitrates 0ppm, Phosphates .5ppm. Any help is appreciated. Thanks!