Help identifying these suckers...

[Signalhead]

Hello Everyone!!

This weekend started to move my livestock to my new fish tank, in my new house. The old tank is at my daughters house and she was taking care of the tank for me for the last year. (Part of selling her the house at a big discount). Now I discovered some "things" attached to the live rock and some of the snails. They are like worms , small roots. They are solid and they do not move..
I'm lost, please help!

 

[nautical_nathaniel]

Almost look like sponges to me.

#reefsquad , anyone ever seen anything like this in your own tank?

 

[reef lover]

Im thinking sponge as well

 

[Fudsey]

I concur, sponges

 

[Signalhead]

Thank you for your response. Now are they good?
I'm planning to spend some money in Orlando next weekend and then finish moving the tank and I don't want to bring any bad stuff.

 

[Fudsey]

Yes they are good filter feeder.

 

[Ron Reefman]

I think there are very few sponges that cause issues in a reef tank. These look like sponges, but photos in better focus would help. Do they have holes in them? Most sponges have holes big enough to see and that they use to exhale water they have filtered.

 

[Signalhead]

Hi Ron, They are not big enough for me to see if they have any holes on them...

 

[MabuyaQ]

I bet this is a pinapple sponge in semi-dry condition.