growth in between zoas

[Polishpower]

Hello
I was wondering what this could be. Just algae or something bad. The zoas have been opening up fine but it seems that the stuff in the middle is also growing.

 

[Rob&Gab]

looks like a sponge, if it is make sure you take it off with some tweezers

 

[Tenor]

looks like a sponge, if it is make sure you take it off with some tweezers

+1 sponge

 

[Polishpower]

Thanks I will start picking it off