What is it?

[Maddoggvup]

I am new to r2r and to saltwater aquariums. Got a new frag. What it the white stuff on this frag?

 

[Lionfish Lair]

Hello and welcome!

That's probably a tunicate.

 

[Maddoggvup]

Thank you. Good bad? Could it be eggs? Pest?

 

[Lionfish Lair]

Nope, not eggs. They're pretty interesting and are cool to have.

They can have periods of growth, like they're going to take over, but more often than not they'll fade away.

 

[Maddoggvup]

Thank you.