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What to do for my black moor goldfish's white cloudy eyes and spots?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish

hi... i need help and fast... i recently bought a black moor goldfish and another type of gold fish. and my black moor has what looks like on his/ her cornea a fungus? something. its white and on both eyes, and on the side of him/ her. i am worried and would like to know what to do to fix this problem. thank you for your time.

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1 Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on February 27th, 2018

Check the water chemistry first. Elevated ammonia levels may result in a cloudiness to the eye(s). Use a master test kit (liquid, not strips) at home or submit a water sample for testing. Most pet stores will do this for free or for a small fee. Perform partial water changes daily, in indicated, to stabilize chemistry and maintain water quality. Use only aged/conditioned water that is temperature matched to prevent stress or shock. If chemistry is fine, it could be bacterial infection. A broad spectrum antibiotic, such as kanamycin, can be used for treatment. Look in the local pet store or Petco for "KanaPlex". It should be in the aquarium section. Follow label directions carefully and remove the carbon filter insert during treatment. Plain aquarium salt (NOT table or Epsom salt) can be used as a general tonic to reduce stress, improve gill function, treat minor infection and aid in recovery. Dissolve 1 teaspoon of salt per gallon of water in a cup of tank water and gently pour it into the tank. Treat for 10-14 days then reassess the condition. When performing partial water changes, treat only the amount of water being replaced, not the entire tank volume. Confirm the tank is large enough to support two goldfish. Ideally, you need about 20-30 gallons for the first fish and 10 additional gallons for each extra fish. Goldfish produce a larger than normal bio-load (wastes) that can quickly overwhelm a tank/filter. The filter should be rated for at least twice the volume of the tank.

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