And having po4 below 0.04 is a stresser for corals not sure if thays enough for them not to open never got my levels that low and honestly I find it hard to believe that with just chemiclean (small amount of gfo) and not carbon dosing or biopellets your able to get them this low in a small tank
I'm inclined to thing the levels are much higher and your test kit is off, any algea anywhere else in tank?
Im stumped
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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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