Weird things all of a sudden have happen in my tank.My Clown looked very sick. Top fin looked a bit white and he was swimming around hysterically. So we added some aqua plus for his fins as we couldn't think of anything else to do. An hour later he was much better. At the same time my polyps haven't opened up for 4 days . I checked all my levels and everything is fine. Ph 8.2,Nitrite 0, Ammonia 0, Nitrate 0, Phospate 0. Sometimes when I blow them they will open up very little. The sand, just recently would turn a bit brown. So I have blown them everyday but would come back the next ( not sure if it's anything to do with it?). I use treated tap water. But not R/O or DI. I have no clue what is going on and I know it's hard for other to figure out too. But please help if you have any advise.
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