muzzleloadin

My urchin has grown super fast, got him he was only about 3 inches across the spines, now probably 10-12 inches in only about 6 months. He is getting to large for my tank, if anyone is interested i'd let him go pretty cheap maybe 20 or trade. He is very interesting. I have read that large urchins push things around, but he seems to be very carefull and I have not seen him knock over anything. he will do a great job of cleaning any unwanted algae. let me know, thanks.