Did the change of GFO change your phosphate levels at all? if they reduced a lot that could have caused the colour change and the resulting growth and colour up
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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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