Anyone know what these are?

[lisare618]

We picked up this live rock in the Gulf of Mexico......It has been in a tank with no fish for a couple of weeks. Only snails and anemones we also brought back. We are baffled, anyone know?

 

[Dyl1234]

I an not sure what this is... It looks very interesting. I hope someone can figure it out because I want to know too lol

 

[lisare618]

Me too! I'm very intrigued! Thanks!

 

[begginersluck]

What are you referring to on this picture as to me there appears to be a lot of life!

 

[bettaowner]

They remind be of mosquito eggs but that can't be it.

 

[54seaweed]

think its a sponge
look through this pdf there are several close matches
http://caribjsci.org/dec05%20Special%20issue/41_638-707.pdf

 

[lisare618]

I think you're right 54seaweed. That's wonderful. Thank you very much for solving the mystery!