I have some kind of black algae in my refugium. I also have some gren hair algae and some reddish looking cyano in there. I am not sure what it is. Everything else in there is fine. I keep the temp between 77-79F. The salinity is 1.024-1.025, Ca is 475, Mg is 1300, Ph is around 7.9-8.1. I can try to take a pic if needed.