Why do hermits keep crawling on my Zoas?

[smartang22]

Any comments on why my hermits just love walking all over my small frag of zoas? They never pick at them; they just are always walking on them or hanging out by them.

 

[650-IS350]

could be algae growing near or around your zoas

 

[cardgenius]

Most likley picking algea and detrius that has settled between the polyps

 

[Sk8r]

They're cleaners; your zoas are dusty with detritus.