Need help with Dino ID and remedy as I’m losing corals

[vitaliyphoto]

Pictures say it all. I am facing a dinoflaggelate that keeps attacking SPS and other corals such as Pectinia. At first, there are pronounced mesenterial filaments, then the tip turns white, then it loses tissue and finally brown dusting appears. There are no strings and only some bubbling closer to the evening. I fought Osteo earlier and eradicated with UV only to have this appear. (57w UV is still running at 500 GPH on my 100 gallon tank). Some SPS is fine so are the torches.

This also shows up on a very few areas of rock work and CUC is not touching it.

Following system parameters:

35 ppt
8.8dKH
440 Ca
1300 mag
17 NO3
.13 PO4
76 F

 

[vitaliyphoto]

A quick bump, no one has any idea?

 

[Lavey29]

You need a cheap microscope to positively ID dinos and come up with a solution. Pics aren't clear but visually it doesn't look like dinos to me.

 

[Lavey29]

https://www.reef2reef.com/attachments/dinoflagellateid12_12_2019-pdf.1324729/

 

[vitaliyphoto]

Interesting, they occupy tips like Osteo does, gonna look for a microscope