SPS Growth Puzzle

[Aquattro]

Originally Posted by chris88

what kind of lighting? up your water changes and bring your calcium and mag up. I find growth accelerates for me when my cal is 440ppm and my mag is 1400ppm. Also feeding helps so much i terms of growth but sometimes can be detremental to the color of the corals because of the increased nutrients.

Lighting above. I've found that anything over 380 for Ca is fine, as long as it's maintained. I use a big a$$ Ca reactor that keeps it about 400. I don't worry about Mg, but did test it a couple of times and it was 1400ish. My previous setup used IO and no supplements other than reactor.
I never found feeding to help or hinder, other than brown out the corals if I over did it. I can see feeding helping a bit, but this I think is more serious. For example, I have a frag that I mounted 2 years ago, 2 inches long. It encrusted, and nothing since. That's just wrong