Anyone know what this is?

[lawil]

I am new to the Saltwater aquarium life and wanted to know if anyone knew what this was. Its growing on my live rock and is probably the size of a dime all clumped together. Not sure if this is good or bad. Thanks so much

 

[Pandagobyguy]

Tunicate i believe

Sent from my SM-N920V using Tapatalk

 

[Pandagobyguy]

Its good if it is

Sent from my SM-N920V using Tapatalk

 

[lawil]

Okay Thank you, I will look into that

 

[shadowmonster]

What exactly do you have in your tank right now? It almost looks like an egg sack.

 

[lawil]

No fish yet. There is a brittle star fish in the tank that came out of one of the live rocks. Still cycling the tank. Its been 4 weeks.