I loved mine and they spawned and I gave them to someone who is retired and can possibly get babies next time! I fed mine Hikari Crab Cuisine, and added Tisbee pods
just for the chance they would want them, and they also clean the rocks. SeaweedExtreme made by Hikari as well as their Bottom Feeder Sinking Wafers - broken little chunks of them. Golden pearls (sparingly they will turn to ammonia very quickly). They would be fun to watch, sit on the top of the rock, grab a pellet/wafer/chunk!
They were a little freaky in how they moved like insects, but were so attractive and always were out and about. I had a Leather and a couple Zoa Frags and they didn't bother them, but I purposely didn't put much in there just in case they wanted to have a Zoa garden buffet.
Here is a poor pic, but not all the white specs, those are the planktonic shrimp babies!