Oct 19, 2013 #1 W WayneswalesUK Aquarium Advice Apprentice Joined Oct 7, 2013 Messages 18 Location Guisborough Uk Hi just added some live rock and thus has popped up can anyone tell me what it is?
Oct 19, 2013 #2 Datreeferman Aquarium Advice Activist Joined Sep 30, 2013 Messages 137 Location Kyle,Texas It's aptasia, a pest anenome. Get rid of it.
Oct 19, 2013 #3 Reeffanman Aquarium Advice Freak Joined Oct 19, 2011 Messages 380 Location Ottawa canada +1 agree also.