acro bleaching issue, could it be too much light?

[tigerslacrosse4]

if your looking for color 14K is a happy medium to color and growth. I got some frags from Jbishop and they have taken off in color and growth. He runs 10ks and gets huge growth out of it but with that you pay with the lack of color. I love my 14k MH the coraline wont come out so much with the blue but the coral colors will.