Sick Zoa? White film

[dudluk]

I got a zoa frag over a week ago, and it looked fine, fully opened up after few hours.

Today I noticed a bit of white film, the zoas are still open, is this something that requires treatment?

Please see pictures below:

When I can remove it by delicately rubbing it:

 

[revhtree]

Hw are they doing now? Did it have a smell?

 

[dudluk]

As far as I remember it didn't have any noticeable smell. The white coat/film reduced after a few days, but recently I fragged that zoa and removed the fishy steam just to be safe..

So far they are doing ok, will post some pictures soon.

 

[dudluk]

So the Zoa is doing ok, all frags are fine , no trace of the white thingy:

But I noticed same thing on the green star polyp, started a new thread. Cleaning it up didn't help, it came back after two days:

Green star polyp - white film, polyps not opening

Hi, There is a bit of white film on my green start polyp, it started maybe 2 weeks ago, I thought it may go away after a few days, but it hasn't. Initially I thought it might be caused by stomatella snails that I saw grazing around when I first saw it (there is a bit of an algae). but now i'm...

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