coral people

[alrmc4]

is this coral just expelling waste or is this tyring to kill the pom pom that is threating to move on to the rock it is on?

 

[reefrunner69]

That looks like mesenterial fillaments to me, possibly a defense response but also common feeding response in sps. I've never seen a monti expell waste, doesn't mean it doesn't happen....but I've never seen it.