White meaty growth

[Vin_reef]

Please take a look at the pic. Can you tell me what it is? It’s fairly firm when you squeeze it.

 

[Vin_reef]

I found this growing in my filter sock.

 

[moz71]

Pineapple sponge. Harmless filter feeder

 

[PeterC99]

Can you get a better picture?

 

[vaguelyreeflike]

Please take a look at the pic. Can you tell me what it is? It’s fairly firm when you squeeze it.

Pineapple sponge! Put him in your sump, they’re beneficial little filter feeders and are adorable

 

[jabberwock]

Does it have one opening or two? That would be a HUGE pineapple sponge. If it has two openings it could be a tunicate.