Strange clown behavior

[Jimbo662]

My two clowns seem totally fine...they'll swim around the tank and about every 15-20 min they'll meet in the same spot every time and sit / lay on the bottom in the middle of some snail shells. After a couple of minutes they'll swim off. Anyone seen this before?

 

[Jimbo662]

I just noticed that one of the shells actually has a hermit in it...it looks like they may be letting it clean them...is that possible?

 

[Jimbo662]

Someone suggested they may be hosting? Does that sound right? Hosting in the sand around shells?