To start off with thank you all very much for your quick response. I have a better light over my fug now im using an energy saver bulb which is at 5500k. I do not have cheato its one of the others that the lfs recommended. Sry cant remember the name. I tested the water one day after i got those sps, and im using API reef test kit. This is why im so worried i dont want to loose them.As for water changes im doing them about once a week. While i do this i clean out my sock in the sump. If you need anymore info that could help i would greatly appreciated it. Thanks again what a great community.