Hey all, about to throw in the towel and jump to fluconazole to treat (if you have some you can spare around Princeton area please let me know). But I have done everything to reduce phosphates over the past month - feeding less, running GFO to keep phosphates below 0.1ppm (Hannah checker around 0.05-0.1 range) and nitrates around 25ppm (salifert), more frequent water changes for 20% a week total, and physically removing as much as I can (until my arm felt it was going to fall off a couple times a week). I have herbivores - 3 blue legs, pincushion urchin, emerald crab, 2 astrea, and a Mexican turbo. I’ve done a 3 day blackout - totally blacked out with cardboard, vinyl, and black gorilla tape earlier before it got really out of hand to knock it back to no avail. I feel the efforts have stopped the spread and slowed the growth, but I just can’t finish it off. Hope I can get some suggestions or some fluconazole from a fellow member who has been through the ringer too!