Rabbitfish/Coral behaviour

[Hara]

We have noticed that the rabbitfish has set up house inside our huge colt coral. What is even more odd is that the coral is acting like they have some sort of symbiotic relationship. When the rabbit goes inside, it will close up snuggly around it. As soon as it leaves, it will open up. The rabbitfish changes color pattern whenever it goes in as well.

Any input on this? Is it common for other fish besides clown to act this way?

 

[michealprater]

Never heard of it but it sounds very neat. Could you take a picture, I would love to see it.

 

[rthoman]

I have a Green Clown Gobie that loves to sit in my colt. He's almost always in there and the colt doesn't seem to mind.