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I am still using zeo, but right now I have cut out all but the basic four and have lowered my dose to almost nothing. From everything I have read Zeostart in excess can be a cause of red slime. My params are all testing normal which is what confuses me.

I am thinking on the weekend when I have some time, and kick this cold I have been fighting I will lift off my lights so I can get deep into the tank and manual pull/syphon out as much as the cyano as I can. I want to do a large water change and a change out of my zeolites and carbon as well (they are still about 3 weeks before the scheduled change) but this may help.