something growing next to my mushrooms

[zoidberg01]

There are blue things next to my mushrooms, I wasn't that conserned until now because they are getting big

 

[zoidberg01]

 

[zoidberg01]

Both of them have a hole

 

[zoidberg01]

Anyone?

 

[bang guy]

Looks like some type of harmless Tunicate to me.

 

[zoidberg01]

Will it grow big

 

[bang guy]

Not usually

 

[zoidberg01]

Thanks