I’ve been battling some algae for a little bit but I thought it was only cyano. Is this a form of it or have I been wrong about what I have?
My test kits (Nyos, Hanna, Salifert) show undetectable nitrate and phosphate. ICP also shows low phosphate. I don’t feed heavy and keep up with maintenance, but I still seem to have a “dirty” sand bed and rocks.
Tank is 190 total. Two tangs, 2 clowns, flame hawkfish, midas blenny, and melanurus wrasse. All of my other numbers came back good in my icp test too. The algae is red. I blow the rocks off once a week with my pmup. I’ve lost some corals recently and I’m not sure if it’s just nutrient starved from me or this algae or another cause.