Sps and par

[Troylee]

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.

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!

 

[jackson6745]

When I ran halide 300-600 par I had no problems, with led's I would mess up most of my sps at higher end of those numbers. I dunno the answer, but something is very different.

 

[AKL1950]

I run 4 XR30 Gen5 Blue. PAR for all the Acro is between 250-330. PAR at the bottom for the Zoa, hammer, Gonis and other LPS runs 180-250. PH is 8.0 and Alk is 8.0. My corals all have good color and steady growth. I would say my Acro is not fast growing, but steady medium to slow growth. But, out of 60 Acro colonies in my tank, I have only lost 3 since my tank was started. I like the slow steady growth and don’t shoot for rapid growth Because I think my corals all stay heathy.