- Joined
- Mar 6, 2015
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Hi all have a reefer 250 and a nuvo 20 and both are having identical issues. I started getting cyano in the reefer a couple months ago and cyano in the nuvo last month. I have tried 2-3 day black outs, works great but it comes back in a couple days. I do 1-2 water changes a week trying to combat it. Ive tries dosing 1ml per 10 gal peroxide twice a day and it doesnt really help. Ive tried chemiclean twice on both tanks takes care about 80% and again comes back.
My rodi reads 0 on two different meters, tested phosphates and have no detectable color on my test. Nitrates read under 5. It possible the cyano is using all the phosphates? I do not run or dose anything, should I try running phosban or get some cheato for my sump? Up for any other ideas as the wife is really starting to complain.

My rodi reads 0 on two different meters, tested phosphates and have no detectable color on my test. Nitrates read under 5. It possible the cyano is using all the phosphates? I do not run or dose anything, should I try running phosban or get some cheato for my sump? Up for any other ideas as the wife is really starting to complain.



