I am wondering because I have a pincushion. It's in with a green star polyp now and dosen't bother it but I was thinking of getting a bubble coral and a ricordia and was wondering if this would be a problem. This site just says to monitor the urchin with corals.
I have a pincushion urchin but I only have mushrooms. So I can only speak for them and my urchin has never touched them.
There will be other replies to better answer your question I hope.
Deb..... :cheer:
It may bulldoze them so keep them secure. All urchins should be monitored with corals but only the slate pencil urchin, IMO, is a real significant threat.
Yeah, I have one with mushrooms and zoos and has never bothered either, plus I think they are great to have, good algea eaters, adds something to the tank....go for it.