Ken Ken
Member
I have had this stuff growing only on my live rock for over 3 months now...at one point it got so bad I removed some of the live rock and scrubbed it away. Looked like it did the trick at first but started to come back after 2 weeks. Any idea what this stuff is? Only thing I'm doing is dosing 2 part calcium and alkalinity to maintain levels. Testing weekly to make sure levels are stable. Any help would be greatly appreciated