lilduud
Reefing newb
So my tank is essentially algae free, I've been running gfo and carbon for a few months and it's working wonders. The tank is pretty much spotless except, for ONE rock that algae seems to always grow on. It's an odd type of algae I've never really seen before it almost looks like a fuzzy mold growing on the surface of the rock. Could the rock be phosphate soaked and is slowly leaching it out? Or whts the deal with this.... Here's a photo of the rock, it's hard to see but its a foggy fuzzy layer covering almost the entire thing.