can chloramine cause cyano?

[Myka]

Originally Posted by iceman86

Ive covered all the basics and the only thing I can think about is either my salt (H2ocean) or chloramine which I recently learned Edmonton puts in the water and an rodi system wont remove.

Check out the RO/DI article I recently wrote in the "New to the Hobby" forum. It covers how RO/DI systems deal with chloramines.

After you read the article, this will make more sense; if there is ammonia making it through the DI resin that could cause cyano. Cyano does like ammonia. However, if there is ammonia making it into your reef you would probably be seeing bigger problems.

Cyano can be very persistent. The best method I've found is manual removal - week after week.