Echinopora lamellosa light in color

[aqua_girl]

i have echinopora lamellosa some pretty large pieces, but they don thave the blue/purlpe base color. they are almost a beige, My lights are pretty good 300 PAR. They are in an 8in deep trough to grow out. calcium 400 magnesium 1375 ph 8.1 salininty 34 ppt temp stays 77. Nitrites 0.003 nitrates 0.127 phosphate 0.01 ammonia 0.
they get phyto, ROE directly few times a week. When i first got it it had the deeper base color and now its gone away?

 

[Ron Reefman]

Just a guess, but the 300 PAR might be a bit too much for this coral.