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Have not checked NO3 and PO4 in awhile. Its through the roof. NO3 is unreadable on red sea test,over.75.API shows .80 PO3 is .36 Im in a panic. Im running ro water to do a 30 gal WC.How often can I do WCs.My coral aren't looking bad, but now that I know, its probably going to change. I'm wondering why it got out of hand. The move. I used all the same water but 30 gal of new. Its a total of 145 gal total volume. Then Im thinking, maybe feeding to heavy, also have 16 fish, some large.Any recommendations.