Most of my sps are growing at this rate. I don't have a ton of them. A few pocciporas, a green slimer, hydoporas, a few birdsnests, and a few different tri color acros. Funny thing is all I'm using is t5's. My water isn't what they call perfect sps water either. I'm a firm believer that you need nutrients in your water. If I ever try to run carbon everything gets mad and retracts. This is a mixed reef with a few leathers, zoos, mushrooms, alot of lps and all of these sps in a 90 gallon. I better knock on wood here soon before I jinx myself!