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Why is my Oscar fish lethargic, not eating, and losing scales?

Updated On September 23rd, 2025

Pet's info: Fish | Cichlid

My Oscar fish is about 4 months old and when I first got him he was very active and then out of no where he became very lathargic and he barely eats and it look as so his scales are beginning to come off he is housed with onother Oscar but the other one doesn't mess with him so I don't know what is going on

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1 Answer

Most Helpful Answer

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Answered By Penelope Graben, DVM

Veterinarian

Published on September 18th, 2019

Hello, The appearance of losing scales is often due to a collection of fluid in the abdomen, called "dropsy". It unfortunately bears a poor prognosis. To learn more about dropsy, I recommend this video: https://www.youtube.com/watch?v=42DAoriYhVI I hope this is helpful. Thanks for using PetCoach.

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