Id please!!!!

[Chaos1783]

Hello. I wanted to know if anyone can tell me what this is on my live rock. They have both been on there since I got the rock and early this morning I noticed that the one had opened up and is like that ever since.

 

[Tanggirl12]

Mollusk, filter feeders

 

[twilliard]

And so cool to have!

 

[Chaos1783]

Ok nice. I was not sure what they were. So do they help with the filtration of the water

 

[twilliard]

Well to a slight amount. They are just neat to watch and grow

 

[Chaos1783]

Ok nice.