Algae ID

[USMA36]

Any ideas what this green algae is? It blows off with a turkey baster. Just started showing up over the last couple of weeks. Phosphates .07 via Hanna ulr checker nitrates 20 via Hanna nitrate low range. Could it be green cyano? I dose 40ml of acropower a week and 15 ml of Nopox a day.

 

[Lavey29]

Or some type of green film algae which I generally have a light coat on top of my rocks facing the light. For me, it's just part of balancing my ecosystem and giving my cleaner crew something to do. Coraline out competes it though.

Have you made any changes recently? May want to cut out the acrowpower for awhile. If you have nitrates at 20 your corals get plenty of nutrients so you may be feeding that algae.