I have had my live rock about 5 years. It is a fuel for green algae. I tried Purple Up and it didnt help the algae at all. I was wondering if I should use phospate buster. I would love to get rid of this algae problem. I live in the deep south so my tempeture is at 82 and nitrate are at 20. My anemonmes are doing great but my fish are not. I have a coral light and I think that is sparking the algae growth. I could use some advice. Thanks.