White spot on tetras eye (Flukes, Popeye, something else?)

[Wickette]

Pop eye, eye flukes, something else?


Two of my 5y/o BH Tetras have opaque white spots in the center their eyes. One has a single small white spot.
The other has a much larger spot in both eyes (half the diameter of the eye).
Spot is under the lens, eyes are not cloudy, lens over the white spots is slightly raised, spots seem to have gotten bigger over the past 2mos.


Other Details: The Tetras are old. 3 died over 6-12 mos ago (They start looking shabby, slightly tattered fins, start struggling very hard to stay vertical for a week, stop eating the day before dying). Those did not have the spots in the eyes. The remaining tetras seem fine other than the eyes.
I have some obnoxious 2-3" Golden-zebra Loaches that were stressing out the other fish, assumed the white spots are damage caused by them, they were moved to another tank a month ago.
No other deaths or signs of illness in the tank. I put in a 24watt UV sterilizer a month ago to help minimize spreading.

pH: 7.0
NH3: 0
NO2: 0
NO3: ~25ppm
gH: 185ppm
temp: 78-80F

I do a 6% (5gal) water change twice a week. and a 25-30% twice a month.

 

[propel]

Mind posting a picture?

 

[Wickette]

Mind posting a picture?

Digital camera over corrects for lighting. It makes the white spot look cleaner/sharper than it is.
IRL the white spot is bigger and hazy.



^This is the tetra that has it in both eyes. I guess the fins are a little shabby too. IDK if that's a symptom or just age or nipping damage.

 

[propel]

Digital camera over corrects for lighting. It makes the white spot look cleaner/sharper than it is.
IRL the white spot is bigger and hazy.
View attachment 884984


^This is the tetra that has it in both eyes. I guess the fins are a little shabby too. IDK if that's a symptom or just age or nipping damage.

Could be parasites or an eye infection. I'd do some heavy research on both and you can figure out which one it is.