I setup a second reef tank about a year ago and then decided after about 5 months that I wanted it to be a frag tank. So I took out all the sand and rock and put in some acrylic frag rags. I was only using ceramic bio-spheres as filtration in the tank and just kept that in place for the frag tank. There are no fish, I was feeding Reef-roids once a week but I stopped due to algae. I think the algae is regular green hair algae, but I can't for the life of me figure out what it's feeding on. There's a small CUC and I don't know if they are actually eating it. I do 40% water changes each week and syphon out some of the algae and it just grows back. The tank does not get direct sunlight and I tried to go no lights for 5 days and no effect. I have also tried Reef RX and it had no effect.
Any ideas from the R2R Gurus??
Tank: Nuvo 14 Peninsula
Red Sea PO4 test kit : 0
Water: RO/DI
Salt: AquaForest Reef Salt (1.026)
Temp: 78
Fish: 0
Light: Radion XR15 G6 Blue
Circulation: MP10
Any ideas from the R2R Gurus??
Tank: Nuvo 14 Peninsula
Red Sea PO4 test kit : 0
Water: RO/DI
Salt: AquaForest Reef Salt (1.026)
Temp: 78
Fish: 0
Light: Radion XR15 G6 Blue
Circulation: MP10