I’m not to familiar with that light.. can you tone down the white and run more blue? That will help for now till the clean up crew starts it job!At the moment the tank is a bright green on the rocks. Too much light?? 0.12 PO4 is with a Hanna checker. Nitrates of 12 to 13 also with Hanna. I have s small clownfish, a blue tang and an Eibli Angel fed each day with 1 or 2 cubes, alternating mysis, brine shrimp, micro plankton etc. Maybe I could reduce the feeding?? Is my problem simply nutrients? If so how can I get them down further (yes, RO water - 10% change a week - my LFS said to give up changes for a while)? A dozen snails, 2 hermits and 3 shrimp. I still do not get whether I need more or less light…. Thanks for taking the time to help out.