Well I don't want to nuke my coral or fish. Is that stuff friendly for them? Also I want to continue using the zeovit stuff, and I want to make sure this doesn't negatively effect my system. I need more specific details.I tried Vibrant and H2O2 and they both had little effect. After a month and a half I nuked the tank and the problem was gone 3 days. I used one treatment. I did a water change 7 days after the first treatment. What the cyano treatment do is starve out the bacteria with a bacteria. Yours is light compared to mine and I would suggest doing a water change 72 hours after you start