Ive been fighting this for the past month or so, i vacuumed it all out of the sand during my last water change. its about due for another water change and it has all grown back. Is this just cyano? Are there any ways that are better than others to take care of it? Ive used red slime remover by chemiclean before but on a much smaller tank. not sure if i want to treat the 90 gal with this. Then my skimmer will be out for a while until I can get all that crap cycled out of the system. any ideas?
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