Re: how high does ur mag lvls have to be till toxic yeah i think i tested it wrong cuz i emptied the 1 ml solution then then after seeing no results i refilled it up again then just added the differance 1500ppm + 750ppm = 2350ppm, so can u not do that? anyways i just started to vodka dosing my tank so hopefully i'll see my nutrients fall to get rid of the hair algea |