White fungus on zoas

[Zoolander]

From what I've read it's a fungus, I can't say for certain what it is. It is, however, blazing through a large colony of zoas.

The cure is?

[tanktop74]

Sounds like zoa pox which is actually a bacterial infection. You should get some furan-2 to treat. You can get this at a LFS or some of your fellow reefers down there will likely have it.

You get one packet of furan-2 to 2 cups of water in a bag. Soak it in your sump as heat makes it work better for like 2 hours. Remove and place zoas in a high flow area. Repeat in 24 hours. You can do a third dose if needed. These instructions come from the great almight zoa master Impur.

This can put a great deal of stress on the zoa. I have also found luck with simply doing a freshwater dip and then dipping in Revive which I know Garrett has in your area but that was more specific to a closed zoa.