The good news is ; my diatom bloom is over, The bad news is; I now have green haie algae. I use all R/O water for everything. I cut my halides down to 1- 2 hours last week to help out. I can scrape it off of the glass but I have it on 2 pieces of live rock. How do you get it off of the live rock? I have hermits (electric blue, and zebra hermits?) as well as three kinds of snails. I also have one royal gramms and a bicolor blennie. No one toches the hair algae. I have read a lot of material about checkiing phosphates etc. Any other suggestions?