Elegance looks funny

[50gTallnewbie]

Can anyone tell me what this is. this is the first I've ever seen it should I be worried it's on the mouth of both my elegance and my open brain coral

 

[DSC reef]

It's eating or expelling waste. Nothing to worry about and if you feed them you'll see it more often. Really nice corals.

 

[A Toadstool Leather]

They look healthy to me. It happens to my plate coral sometimes too and my open brain, usually after a distrubance. Not to derail but is that an aussie elegance? Nice elegance though