Junk on my rock
I have a bloom of some sort in my tank. There is some cyanobacteria, but there's some other junk on my rocks, too, that's less stringy and film-like. It's a greenish-brown and it's really annoying my button polyps and my mushrooms. I don't have a phosphate test, but I do use RO
water, so I didn't think that was likely to be an issue. I've been in the hobby for over a year, so I'm fairly sure I'm not over-feeding. My nitrates are about 15ish (where they usually are). What is the deal?
92-gallon corner tank, 100lbs of LR
, 140lbs of sand, 250watt 10,000K MH
, 110watts of actinic PCs, Mag 7 return, custom refugium, AquaC EV180 w/ Mag 5
Female lyretail anthias, eyelash blenny, tomato clown, saddleback clown, firefish goby, 2 sand-sifting stars