Is this a type of sea apple

[sixty_reefer]

This lives on one of my rocks, the tentacles reminds me of a sea apple, I’m just not familiar with them living inside crevices I’m the rock

 

[bradleym]

It looks like a rock dwelling sea cucumber to me.

 

[taricha]

of which a sea apple is a type of cucumber, so yeah. similar animal. That's definitely the filter feeder cucumber / sea apple feeding technique.

 

[livinlifeinBKK]

of which a sea apple is a type of cucumber, so yeah. similar animal. That's definitely the filter feeder cucumber / sea apple feeding technique.

We actually identified it to our best ability on a repost thread...I have one and OP agreed it matches up pretty precisely