Brown Jelly?

[alibaaqeel]

Hello,

I have a Red Sea Reefer 170 tank with Mixed Reef. The tank age is 6 months.

My tank was doing well and every thing stable and all corals are growing well, till I have started to face a big issue with what I think is brown jelly (as of attached photos)

I started to lose several Euphilias and some of SPS not looking fine.

All parameters are fine as follows:
KH 8.5
Cal 448
Mag 1360
Nitrate 7
Phosphate 0.03
I am using triton other method and Tropical marine reef pro salt
I do have UV and carbon+GFO reactor

I have dipped some of infected coral and rocks in Iodine and polyp lab reef primers, but 3 days later same jelly get back and I have it in the main aquascape too.

I need your kind help to find a solution!

 

[ndrwater]

That's Dinos..
Brown jelly is typically a LPS disease affecting Euphillia. SPS will have tissue recession or bleaching.
The last 2 pics looks like classic Dinoflagellates