I have also tested Wal-Mart distilled and have seen TDS
. Ideally this is supposed to b zero. I have argued with others here at AA before about this. I have also tested other brands with the same results. The amount is negligible and shouldn't factor in the Cyano
outbreak. I use my own RO
water and also have had Cyano
. I don't feed my coral tank at all. I use a good skimmer and have excellent filtration. I have also experienced this in my other tank. Light does effect Cyano
and turning them off a couple days can eliminate it. But fm what I've experienced and everything I've read indicates that most tanks will have this bacteria at some point as they mature. It's no big deal. Syphon out what u can and wait it out. Avoid the chemicals if u can. But they do work as stated by others. Unfortunately they can also eliminate beneficial bacteria.