How much of it do you have? Have you tired Manuel removal of all the stuff you can get /scrape off and then trying to let the CUC get it from there
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Current tank---125 gallon mixed reef 60 gallon sump, Reef octopus nw200 skimmer, Rapid LEDs, Maxspec gyre, Mp10s, Fuge, Biweekly 20% WC, QT everything
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