Rockfish disease

[Humuhumunuku]

Hi all, I'm posting on behalf of the Channel Islands National Park. They have a 1500 gallon kelp forest display tank, and two of the fish appear to have some sort of eye disease. Has anyone seen anything like this before?

Water parameters:
pH: 7.5
ammonia: 0
Nitrate: 0
salinity: 1.023
Temp: 58-60F

I'll try and get some more water parameters to share. The pH seems pretty low, but I wasn't given alkalinity.

Treefish 1:

Treefish 2:

Scorpionfish 1:

Scorpionfish 2:

 

[calk me Q]

....i would guess, Velvet? try a fresh water dip.