Having a cyano outbreak. Tank is fairly new, parameters look good to me. Nitrate-5, phosphate .03, alk 7-8, calcium 450 what else should I look for? Plan to cut lights back and do a 30 gallon water change. 90 gallon with 30 gallon sump.
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Cyano is not always a sign of bad parameters. I have a ton of green cyano right now in my tank and my parameters are spot on. The problem is that I have a new sand bed and some new rock.
Cyano is a bacteria. You can do all the right things with flow, and water changes and still have cyano in the beginning months of a setup no matter what. I have found that by dosing micro-bacter 7 or other denitrifying bacterias will help fight it off.
4 25% WC in two weeks, yup it's still there.I'm in the cyano boat too! Started when my Neon Damsel decided to tear up my 3yr old SB4 25% WC in two weeks, yup it's still there.
Anyone know the shelf life on the MB7? I've had a new unopened bottle in my fridge for over a year?
I just tell myself cyano is a really nice and colorful decorative bacteria and it makes it a lot easier to deal with until it goes away.

