Yup, the cyano is coming back with a vengeance, even with the reduced lighting, the increased water movement and the Maracyn 2.
Found on another thread, Any Quickies?
, that according to the "Redfield Ratio", http://buddendo.home.xs4all.nl/aquar...dfield_eng.htm
, the cause of cyanobacteria is combination of nitrates and phosphates. They're out of the correct balance.
In my tank Nitrates measured 0 and Phosphates the same.
I'd post a picture of the increased nastiness but I've reached my photo max...