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My Black Moor goldfish is sick with white film. What should I do?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Male

How do i save my black moore? He isnt swimming, breathing fast, tries to eat but cant get the food, is losing weight, floating to his side, and is very weak. I did a 40% water change yesterday and 2 days before after noticing symptoms, but hes only gotten worse. The other goldfish is happy and active. My moore has a white film on him, cant tell if it is fluffy or rough as he is so small (1 1/2" with tail). Every time i see him floating i think hes dead, and i have no idea how to treat him.

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on September 18th, 2018

Separate him to a quarantine tank. Confirm proper chemistry ( 0 ppm ammonia and nitrite with nitrate at 20 ppm or less). Perform partial water changes to stabilize chemistry and to maintain pristine water quality. Clean water is the cornerstone of treatment and recovery. Use only conditioned water that is temperature matched to prevent further stress or shock. Gold fish are cold water fish and do best between 65 F and 72 F. Fast him for 3 days, then offer bits of cooked and shelled green peas until swimming is normal. peas can relieve constipation which can affect the swim bladder. Plain aquarium salt (NOT table or Epsom salt) can be used as a general tonic to reduce stress, improve gill function, treat infection and aid in recovery. Dissolve 1 teaspoon per gallon of water in a cup of tank water and gently pour it into the tank. Treat for 14 days then reassess his condition. An "all in one" treatment, such as LifeGuard (by Tetra), can be used concurrently with the salt treatment. Find it in the Aquarium section of the local Petco. Follow label directions carefully and remove the carbon filter insert during treatment if indicated.

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