What could be causing an oscar fish to have a cloudy eye?

Answer by  Tank (539)

Most likely it is due to unclean water. I would change about 50% of the water and give the tank a good cleaning. As well as feed some frozen mysis.

Answer by  TexasMadeKD (13)

The first cause is physical damage or maybe the quality of your water is very poor. Nutritional deficiencies and bacterial infection are two more main causes for cloudy eye.

Answer by  swampy02 (145)

Cloudy eye is usually caused by a secondary infection. You can treat it with epsom salts. 1 table spoon per 10 gallons of tank water. Also try a total water and filter change.

Answer by  harper2583 (466)

Your oscar could have a cloudy eye because one of the other fish bit it or it could have a fungis.