can bristleworms sting zoanthids

[sandsifter]

The last couple of weeks my zoanthids have been staying closed a lot. They are opening but not completly. There is a bristleworm that has set up shop in the rock directly under the zoos. I started with one polyp and now have only five and really don't want to lose them. Thanks.

 

[reefnut]

The bristleworm will help the zoanthids by keep their area clean. Unless you ever actually see the bristleworm in the act of harming something... assume they are beneficial.