ID this please

[Mhalko]

I’m new to the whole salt water scene and when I purchased live rock this coral was already on it and the seller didn’t realize. It has since tripled in size and I have come to wonder what it is.
If anyone knows it would be much appreciated,
Thanks,
Matt

 

[sfin52]

Looks like a keyna tree. It's a soft coral that will grow quickly. As they get bigger they will drop limbs. At this point it can be like a weed. I just keep and eye out for the loose limbs and make frags or toss. Welcome to r2r

 

[MERKEY]

Welcome and does look like keyna.

 

[dvanrij]

It’s a leather soft coral. It resembles a Kenya tree but the polyps on it are a bit odd. Not harmful in my opinion.

 

[sfin52]

this is my keyna tree. Top left middle you can see where it dropped a limb