Pencil Urchin
 

Had one come in alive on a zoo frag. Can't seem to find any info on them as most seem to talk about the slate pencil which is not the one I got. Anyone know if they are reef safe?

Thanks

I have one in my tank. It eats a little coraline algae. The biggest problem with any urchin in a reef is they constantly knock stuff over. They are very strong and squeeze into places where something gives and send corals tumbling, although I guess they are no worse than large snails and hermit crabs. I have to pick up after them several times a week too.

Good to know, thanks for the reply.

Marcus