Algae I.D./help!!!

[phi delt reefer]

pull out what you can (get some help i guess). But only do it after you shut down all the flow so it doesnt break apart and spread. Do a big water change and do a lights out for 3-5 days - total darkness. Feed minimally. If its only one rock. pull that sucker out and bleach scrub it. Or just chuck it... replace with a new clean eco-reefer piece.

start running GFO as well - pellets are not great at lowering phosphates, you need to run both usually, IMO.