mikestanked
Aquarium Advice Freak
I believe I saw this thing on a piece of new LR I purchased on Saturday, and it moved to the middle of the tank and hasn't moved very much( as far as I can tell the last 2 days.) But I haven't been able to move the new piece( its only 1 1/2 pounds) in the bottom right of the tank profile. I can't remember if this green substance has been there the whole time on this rock? Help needed!