Algae problem with carbon filter???

[ggwp1111]

Back story. Cyano infestation 2 months ago. Removed carbon filter and used chemi-clean with 50% water change. That fixed the issue and it ran fine since then until a week ago I realized I forgot to put the carbon filter back into the media basket. So I did and now started having cyano/algae problem again. So I'm just trying to understand what the carbon filter has anything to do with it. Can anyone shed some light?

 

[Dan_P]

Back story. Cyano infestation 2 months ago. Removed carbon filter and used chemi-clean with 50% water change. That fixed the issue and it ran fine since then until a week ago I realized I forgot to put the carbon filter back into the media basket. So I did and now started having cyano/algae problem again. So I'm just trying to understand what the carbon filter has anything to do with it. Can anyone shed some light?

I cannot see a connection. I’ll bet the nuisance algae was already on the comeback before the carbon filter was re onne tec.