cyano problem

[Aiptaisia anemone]

How is it that I have a lot of macroalgae, a phyto bloom literally happening on my aquarium right now and still have cyanobacteria? so what was the cause of it?

 

[Jekyl]

How is it that I have a lot of macroalgae, a phyto bloom literally happening on my aquarium right now and still have cyanobacteria? so what was the cause of it?

Cyano is usually caused by a parameter shift or change of environment rather than nutrient levels.