Help with unkown algea


New member
Have this algea growing all over my rock work and not for sure what it is or best way to start getting rid of it. You can see it is a kind of fuzz/hair to it on top of it. Any help would be great


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New member
Typically with any algae you are looking at a nutrient issue. Depending on your bioload and feeding habits I would guess nitrates or phosphates. I've had a lot of luck with a media reactor running a phosphate sponge or gfo (granular ferric oxide). I battled green hair algae on and off for months until I started running gfo and then it disappeared permanently.

Reef Doctor

New member
I had the same thing in my tank. Ran Chemipure elite. Didn't do anything for over a week or two, then all of a sudden the algae was gone. Looked like something had vacuumed my rocks. Decided to test things out by removing the Chemipure again. 3 days later, had the stuff on my rocks again.