I have a fist size purple encrusting mont?...that i want to get rid of. You should have excellecnt water quality and lighting. The under side of the piece had some bubble algae on it that i brushed off with a toothbrush (in the sink, not my tank)...i have NO algae in my tank...just want to be up front about that. Its a beautiful piece but takes up alot of space in my cube. I will be home tomorrow..morning/early afternoon. You must bring a container, i dont have one. You can email me at [email protected] and i will get it on my blackberry today, or leave a message here.