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Black out in full effect!
Been battling diatoms on sand bed for some months now and have tried manually removing them with water changes, GFO only small amounts as not to strip my water, reducing duration of lights and reduction on intensity. Haven't tried H2O2 yet, but may.
Not ruling out silicate bleed through the RO/DI, but I haven't tested for silicate. So next step to try is the black out.
So what's you experience with black outs and what's been your out come from your experience?
I'll post mine in two days.





