Is this Caulerpa?

[ibryson]

I ordered a small ball of Chaeto and noticed this little branch in with it? This is my first time setting up a refugium and my first time using macro algae so I’m new to all of this? Should I keep it?

Thanks!

 

[Hemmdog]

Looks like it. Yea keep it, why not. I have both caulerpa & chaeto in my fuge.

 

[KJ]

Caulerpa racemosa! https://www.google.com/search?q=Cau...ved=0ahUKEwjHmZfo--niAhVDiOAKHeLoD1sQ_AUIECgB

 

[inktomi]

I'd avoid it based on past experiences with Caulerpa. It can grow very fast if you're not careful, though tangs often like to eat it. Without a tang in my previous tank, I was overrun with the stuff. I pulled it out by the bucket full but it grew back as fast as I took it out. The tang was very well fed!