Backyard Aquaponics
A place to discuss aquaponics

Anyone who hasn't seen Pop-eyes in Tilapia, here is a classic case. I am trying to decide what to do with him. He is one of my breeding pair, weighs 750 grams. Problem is, he can't see to eat though he can see shadows. He is currently in a separate tank with 23ppt salt. Has been there 3 days. He is more active now but still does not eat.

Thinking he is getting close to BBQ time.

here are some closer looks

what causes that DT? Is his tail a bit bloody too?

I am in the process of googling right now. Will let you know soon.

DT have a look here

Pop-eye
Cause
Unknown, but possibly fish tuberculosis, bacterial infection or even over saturation of dissolved oxygen.
Symptoms
Eye or Eyes protrude from their sockets.
Treatment
Difficult due to its unknown cause, general antibiotic.

have a look at the link I posted too

Pop-Eye (Exophthalmia)
Pop-eye may not be caused by infection and there are various causes. Easily identified by the protrusion of one or both eyes. It is commonly caused by excess gas in the system, brought about by super-saturation of gas in high pressure water mains. It can also be associated with Dropsy or Ichthyosporidium. Look for bubbles of gas in the eyes, this indicates the bends, as does nervous upset, distress or just odd movements. If these signs are obvious then lower the temperature slowly to increase solubility of the gas (usually nitrogen) reduce aeration and wait to see if there is any improvement. In marine aquaria, copper poisoning can be one of the causes. Pop-eye can also be caused by hormonal imbalance, for which there is no cure.

here's another link, page 2 and 3

Think he is safe to eat?

did he have bubbles in the eyes?
If it's the Streptococcus I definitely wouldn't eat him.

not in the eyes....the eyes are in bubbles

from the first link

Looks and sounds like something out of a Simpsons episode....I'd probably feed it to the cat and see what happens.....