I've been dealing with this for a while now. been plucking feverishly and have knocked it back to almost gone. My question is how do I keep corals happy with nutrients they need but not feed the gha? Tests still show 0 nitrate and .7 phosphate. All at 8.1 calcium at 517 mag 1409. Been doing regular water changes with 0 tds water. Also been running the fuge light 24 hours a day. Feeding only PE mysis daily.