I.D Please

[Ober_Reef]

Hello All,

Just wondering what these guys are, hoping nothing nasty. My tank is a couple months old and I started with a Carib Sea live but not from the ocean rock as well as the dry seeded rock from Carib Sea. I have a couple of fish, some hermits, and snails all that I got from my LFS.

 

[ChiCity]

pineapple sponge, harmless filter feeders
and a sign of a healthy tank

 

[Greg P]

Possibly pineapple sponges

 

[Ober_Reef]

Just looked them up and it definitely looks like that’s what they are. I was worried it was aptasia or something. Thank you