Aiptasia? And other things

[Ambones]

Hi team, I got this hammer coral a few weeks ago and just noticed tonight that it has this aiptasia looking thing coming out of long white calciferous things on the coral's base (I have put two arrows to show) . It's strange because it's green and hides when I flash lights on it then slowly creeps out like a worm from the white thing and opens up. Also what is the weird pinkish thing, it looks hardened as well (the most right arrow). Any input would be appreciated.

 

[NOG_Bignodism]

I think it's a keel worm they are Fitler feeders and they are not harmful to your tank

 

[mtraylor]

You can take coral out and remove them. I usually inspect skeleton and remove pests after dipping coral and before gluing into aquarium. Good practice for additions in future.

 

[kevgib67]

Definitely not aptasia, I like all my fan and feather duster worms and as mentioned they are good filter feeders.

 

[ISpeakForTheSeas]

Yeah, the arrow in the middle is a kind of feather duster worm - harmless filter feeder. I honestly can't tell what the other two arrows are pointing to (you'll probably need closer up pics of each - sorry).