Not sure what I should do.

[Eienna]

I have one frag remaining, but it has struggled from Day 1 and has green hair algae all over it where the flesh isn't. At present, there is no algae elsewhere. Should I just throw it away before it infects the rest of my tank? There's no possibility of simply fragging off the algae-infested areas. I've tried manually removing it. Is there a dip for such things?

 

[760mason]

Hydrogen peroxide dip has worked for me on Zoas. I have seen other threads on using a Qtip just on the algae. Some corals cant tolerate the hydrogen peroxide.

 

[Pete polyp]

In my experience it won't spread unless you give it the right conditions.

 

[Eienna]

OK. Anyone else?

 

[SeahorseKeeper]

What is the frag? Depending on the frag, I would do a peroxide dip.

 

[Eienna]

I think it's a moon brain. They called it a diploastrea in the store.

 

[NanaReefer]

Remove it from the plug?

 

[Eienna]

Remove it from the plug?

It's not on the plug as much as the coral itself :/
I didn't get a chance to do anything before I left. Hopefully it's not too late when I get back in about a week...