Clearly nitrates and light are primary ingredients for algae growth.
In my particular case tested: NO3 = 30, PO4 =.5, CA2=20+, KH = 10. My lighting is 96w 10000 and 96w Actinic.
I am running a Coralife Super 125 10 hours a day and a Rena xP4 24/7 with charcoal and ceramic. I have 4...