I have had well documented struggles with my tank. I have changed about everything, added sump, reactor, skimmer, halide lighting etc. I have mostly acropora and monitopora coral. I have some soft corals (zoas and mushrooms) and some lps (candy cane and frogspawn). I had some color issues about 6 weeks ago, but that is now improving (added more fish, dose amino acids and oyster eggs). Long story short, I had minor success (candy canes doubled, montipora exploded) back in November of 2012 through January when growth stopped. That caused me to add a sump and change my lighting (had 120 watt LED unit running at 30%). I now have 25o watts of halide over my 20 gallon. Everything in the tank is looking really healthy now, but nothing grows...nothing. Coralline stopped growing and disappeared. I've let everything sit ideal for 6 weeks since I started dosing the amino and besides my color improvement, there's been nothing in the way of growth (since January really). My SPS all encrust over the super glue and then stop growing completely. My numbers are superb and have been stable for months. These are well documented in other threads. I am trying to hone in on success and I think I am getting close with these minor tweaks. I am now thinking maybe I have light inhibition from my halide. Thoughts?