fallnhorse
Member
I have a pencil urchin in my tank. I bought him 3 months ago. Does a bang up job of stir the sand and clean alge. I notice he has a half dozen small feather duster on him. about 5mm is all. Kinda neat to watch. I add a little trace elements for my live rock and amemones. I just wonder if anyone had any thought? Heard such a thing. If they will reproduce. I don't mind them and if they do get to be too many of them. Maybe there a fish that will eat them? Ever heard of this?