New Tank 90 Gallons. Has been running about 4 months now. I have hair algae growth everywhere. And can not figure out for the life of me why. I do all the test p04, nitrite nitrate ammonia, And everything reads 0 all my test are new and not out of date. The hair algae is on everything. Have a fuge running, with chaeto only 3 fish for stock and 1 coral. I do feed mysis shrimp but they are rinsed and i do use RO DI water for my water changes. Please help! Its Driving me crazy!