white coating on zoas

[GregW]

Any idea what this might be?

 

[MikeNapoli]

Fungus. Maybe try a dip in Furan-2.

 

[pnoyreefer]

It means it going to melT

 

[GregW]

Should I treat the whole frag tank?

 

[MikeNapoli]

I would treat your zoas for fungus. As far as the ones that are already white .. you won't be able to save them.

Check this. ZoaTreatment

The treatment for zoapox and fungus are the same.

 

[mikem]

It's definitely zoo fungus. Good luck with them.

 

[GregW]

What causes zoa fungus? Anything I could have done to prevent it?

 

[mikem]

What causes zoa fungus? Anything I could have done to prevent it?

Have you read the zoo treatment from Mike? that is the only known facts on zoo fungus.
Theres nothing you could have done to prevent it. The only thing to do is try and catch it earlier.

 

[MikeNapoli]

To "try" to prevent it ... dip all new zoas in furan-2 for at least 30 minutes w/RODI (proper temp and Ph) when you get them before putting them in QT.

 

[Phyl]

30 MINUTES?! WOW. And that doesn't kill them?

 

[MikeNapoli]

Maybe I was a little harsh with the 30minutes but they say at least 15 but no more than 30.

Procedure:
place 1 capsule into the RO cup and mix it good until the RO water turns green. Put the zoa in the Furan mix and leave it for xxx minutes. I recommend at least 15 min but not more than 30 min.
After the treatment, wash the zoas in your tank water on the other cup you had put aside. Then put the zoas back in the tank where there is a stronger flow.
*Note: Your zoa will have a green dye to its body but it is fine. The green dye should fade away in a day or two.

Do 3 treatments in a row then let it rest for 4-7 days; depending on the condition of your Zoanthids. If the ZoaPox is still on the Zoanthids then continue with another three treatments. But make sure you let it rest 4-7 days after every 3 treatments.

Temp:
Keep in mind; during the treatment I slowly increase my temp from 78 to 81-82. Furan works best in higher heat. But I would not go over 82. In freshwater I bump it up to 84-86 for Furan treatment against fungus.

Water Changes:
I also increase my water changes from 5 gal per week to 10 gal every 3 days. (This is in a 75G tank.)

*Note: I did another test on the effectiveness of water change. With water changes my Zoanthids seem to recover quicker. On the other hand, Zoanthids that receive no water changes still recover, but it just takes longer.

Recommended Instructions for long-term treatment of ZoaPox:

1st WEEK
Day 1: 1st treatment started with 20 min dip
Day 2: 2nd treatment started with 20 min dip
Day 3: 3rd treatment started with 20 min dip
Let the colony rest for 1 week

*Note: If your Zoanthid has recovered and you still want to do another dip, please reduce the amount of dipping time when you do so. Also, you don't have to do another treatment if your Zoanthid is completely healed. I'm doing another treatment on mine just to make sure the ZoaPox is completely eradicated.

2nd WEEK
Day 1: 4th treatment started with 10 min dip
Day 2: 5th treatment started with 10 min dip
Day 3: 6th treatment started with 10 min dip