Sponges or filter feeders?

[shogun1964]

I'm pretty sure the orange ones are sponges and the small purple one is to, but this morning I took out a rock to remove some bubble algae and found this mass of yellow stuff growing underneath, but I'm afraid since I exposed it to air it will die. Is there a chance it might live?

 

[saltyfilmfolks]

They will live.
I think the purple one may be a tunicate.