M myst Premium Member Oct 30, 2013 #1 Not sure what this is on the new live rock I just put in my tank. It's brownish and hairy.
oscarinw New member Oct 30, 2013 #2 Look more like a bacteria bloom. There's not much to do. They tend to come and go in my experience. Apart from the looks it should pose no risk.
Look more like a bacteria bloom. There's not much to do. They tend to come and go in my experience. Apart from the looks it should pose no risk.
I iamarchitecture New member Oct 30, 2013 #3 Had this in my tank in the beginning. I added a clean up crew and they took care of it.
