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Corneybacteriosis
Symptoms: Bulging eyes
Treatment: There are a few commercially available products which treat corneybacteriosis. Penicillin and tetracycline are among them.
Information: Corneybacteria causes swelling in the head which will push the eyes outward. It is caused by overcrowding and water of poor quality, having an excess of ammonia and / or nitrites.
Exophthalmia- (Popeye):
Symptom: Bulging eyes.
Popeye or Corneybacteriosis will cause swelling in the head of the fish causing the eyes to protrude outwards. Popeye is a condition and not an actual disease. It can affect one eye or both. Possible causes are poor water quality, trauma, internal bacterial infection and also Gas Bubble Disease.