A polyp on my magician zoas started looking a little odd. There aren't many on the frag so I was pretty concerned. I pulled it out and looked it over pretty good, but found no evidence of parasites.
I put it back in, and a day later it looks worse.

It looked swollen, and wouldn't close, even when I poked at it. Today it still looks swollen, but the skirt seems to be disappearing and the other polyps have their skirts folded down.

The other zoas near it aren't showing any problems. I have some pricey ones nearby so I want to be proactive and act quickly.

Should I dip? Furan 2 or FW?