Randy Holmes-Farley
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I ended up just getting red sea algae pro, and my po4 is still at 0, but nitrates was high around 20 so i did a 20 gallon water change this morning, should phosphate be higher?
I'd either feed more (if nitrate is not excessive already) or dose food grade sodium phosphate to attain at least 0.02 ppm 24 h after dosing.