Hammer Coral behavior

[riley9010]

The past two days one of my hammers has been retracted all heads and once fully retracted releases a brown liquid and then fully extends and goes back to normal. It almost looks similar to when clams spawn in reef systems. Is this just another way euphillia propagate? I’m very doubtful it’s zoo as I’ve seen it release that before and this is much more liquid fine particle consistency

 

[Crabs McJones]

sounds like the hammer coral is pooping. They do this to release excess zooxanthellae
https://www.reef2reef.com/threads/hammer-coral-releasing-something-from-mouth.871550/

 

[BonnieB]

I have to agree with @Crabs McJones . Releasing poop. The way euphyllia propagate is by growing baby heads on their stalk. Mine have done so and it’s fun to see just how they become this fluffy thing when full grown!