What is this growing on my frag.

[rjjr1963]

Looks like some kind of macroalgae. Good/Bad?

 

[Misled]

Look like grape caulerpa. Bad in the display. Will get out of hand.

 

[mcgyvr]

Yes ( Caulerpa...Peltata or grape)..get it out now...pull that coral and pick ALL of that caulerpa out..
Its a horrible weed that needs to be taken care of fast before it gets a hold..

 

[dkeller_nc]

In fact, those of us that have had to deal with it might suggest that you toss the frag into the trash can. You can pull the green part off, but the holdfasts that aren't so easy to remove will grow again (and again, and again...).

 

[matt1444]

Would a hydrogen peroxide dip do the trick?

 

[mcgyvr]

Would a hydrogen peroxide dip do the trick?

It would likely be helpful after you have manually removed as much as possible.. Zoas can typically take the peroxide dip without issue..

 

[rjjr1963]

I sacrificed the frag. Hopefully it didn't spread anywhere else. The culurpa grows amazingly fast.