Iíve started to get some pretty bad algae in my reef. Iím still attempting to get rid of the hair algae I have and then I see this stuff. Iím about 80% sure this is cyano
, it comes off in sheets. Only thing is itís grey in color so maybe itís something else, idk. Are there any decent products that can get rid of this in addition to water changes? Did I identify it correctly?