I had a pencil urchin in my tank but he was knocking down too many things...What do you think about putting the pencil urchin in my refugium.....Thanks
Should be okay as long as it has food. The one we had loved coralline, but cant say whether or not it was eating green algae or not. It spent most of its time on the LR, not on the glass. You could see where it ate the coralline after it moved on.
