I have been battling some sort of hair algae. I have bought a microscope and here is the 400x view. Looks like GHA to me. BUT, I have tried everything to get rid of it. Nothing will eat it. Had a lawnmower blenny and sea hare starve with this stuff plentiful. My foxface and whitetail bristle tooth won’t touch it, all different types of snails, hermits, pitho, conch. None of them. I remove it time after time. Tried fluxRx twice that didn’t work. Tried blackouts multiple times. Algaefix marine no help. Then I thought maybe the reefmat removed the fluxRx before it had a chance to work so I took the reefmat out and took the cup off the skimmer 9 days ago and am trying running it again with algaefix at the same time. Ran with no skimmer or filters for a week and a couple days ago put in filter socks and cleaned sump completely and started skimmer back. Ran GFO in reactor for a few days but Parameters show 0.0 phosphate and 1.0 nitrate with Hanna checkers so I turned reactor off. Even bought Hanna calibration kit for each. Only running lights 6 hours a day. Have left UV off for a month or so. 20-30% water changes weekly. I’m at my wits end. Replaced all RODI filters, then bought a whole new RODI system. I’ve got Cyano starting, especially in sand next to glass below top layer. Got what looks like maybe Dinos starting on top of sand as well which disappears at night.
