What is this on my LR?

[MarineEddy]

Hi guys, I was just wondering what this is on my live rock. It feels a bit plastic/rubbery. It came on my live rock but seems to have grown a bit. It is about 1.5 cm long. Is it ok or should I take it out?
Thanks in advance, Eddy

 

[MarineEddy]

Anyone any ideas?

 

[mr_X]

It's ok. A Tunicate most likely.

 

[MarineEddy]

Thanks, do I need to do anything to it or about it?

 

[mr_X]

No. It will sustain itself.