White fungus like covering on acan/lps/GSP

[KSean]

Hello reefers!

I saw this white colored fungus like stuff covering my acan which grew so fast and killed The coral within 2 days (about 10 heads). I see that this stuff keeps spreading throughout my tank and I noticed that
1. It started growing on and eventually killing other corals regardless of type (I have lps and softies)
2. It seems to be taking down corals that are particularly stressed and finishing them off.
I tried coral Rx and iodine dip but the coral eventually died off. So it didn’t help. Can anyone help identify this white monster and how to clear them out from my tank?

I’m also seeing these tiny circular patches all over the LR and glass. (Photo 3) Not sure if they are connected.

Please help!!

 

[TriggerFinger]

Hi @KSean
The white fungus sounds like it might be bacterial but I’m not sure. someone else may have a better answer. The little dots are eggs from the snail also in the picture.

 

[KSean]

Thanks for the reply @TriggerFinger !
I dipped the corals in a concoction of Coral Rx + API Furan 2 + something else used to clear off cyano(forgot the name). One of them has recovered well (4/5 polys opened up) while the GSP is still deteriorating. At this point, the GSP is proabably a goner. :/
Will update if things change.