help betta has popeye

[ghosty]

yesterday i noticed one of my bettas has popeye. how do i treat it? is it contagious? what is it caused by?
any info would be great

[aunt kymmie]

This is what I pulled off of our forum under the diseases section:

Symptoms:
Lethargy, bulging eyes associated with loss of vision

Causes:
Severe stress, various pathogens

Treatment:
Broad spectrum antibiotics

Determine your water parameters and perform frequent water changes to improve water quality. Pop-eye is a sign of a number of infections rather than a disease in its own right.

Based on the above info you should perform frequent water changes and get an antibiotic for treatment.

[ghosty]

i did a water change yesterday and it seems to have gone down a bit. it could have been the water i didn't do the water change for 2 weeks, normally i do weekly changes. do i have to worry about my other fish in the tank?