SPS Growth Puzzle

[shrimpchips]

How far off are the lights? Maybe you're getting some photoinhibition going on?

[chris88]

it's not the lighting. I get 1-2 inches of growth in my sps per month. I can only tell you what works for me. Calcium above 420ppm and if i dont add mag often then growth stops. IO salt hasa very low mag and coraline algae just rapes the stuff. I feed with coral frenzy and it really does help for growth. I feed once a week maybe twice if i am bored. Its not going to be a one thing fix, its probably a mix a few things added together that is hampering growth.

[Aquattro]

Originally Posted by shrimpchips

How far off are the lights? Maybe you're getting some photoinhibition going on?

I thought that might be happening, so swapped in a set of used radiums for 2 months, no change.