Does Coraline survive on dry rock for years?

[RyanN]

I set up a 29 gallon tank a couple of months ago, used Fritz turbo start and after a week or two added a couple clowns and a couple cheap coral frags all of which are still fine. What seems strange is I seem to be growing coraline (it's not cyano, it's definitely coraline) extremely fast for such a new tank but almost all of it is only on the rock. I'm just curious if it could go dormant that long or if it's from the frag plugs.

 

[DDenny]

Out of saltwater no in saltwater with water movement yes as long as parameters are met.