What are the main contributing factors in a Cyno outbreak? Fix?

[angelfan]

Originally Posted by marie

Cyano is definitely phosphate driven, if your phosphates are higher then usual then a new bulb will just make it worse. Moving could have released the phosphates from your rock and sand.

Are you running any phosphate removers? If not now would be a time to start. Increasing the flow where cyano seems to settle will help as well and of course doing that good old standby...lots of water changes

Sounds good. I just started with some phosphate sponge but I was unsure if that was the problem. Thanks! I thought I remembered reading that phosphate supports cyanobacteria growth but I wasn't sure. I'll let u know how it goes