Which schedule do you use? I had a maxspect r420r 130 W before. The corals were almost exploding under that light. Since a couple of months ago do I have a maxspect Rsx 150. The sps corals don't feel really well. Especially the seriatoporas and stylophoras don't grow any more. I have tried different schedules whiteout any clear reaction. Now have reduced channel c and d (90/90/25/15) with that reddish an greenish light. The corals seem to feel more comfortable now and the colouration looks clearer. EhaW do you think?