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What should I do if the fish’s gills are rotten?

2026-01-20 15:04:28 pet

What should I do if the fish’s gills are rotten?

Recently, discussions about fish diseases have become increasingly popular on the Internet, especially the issue of "rotten fish gills" which has become the focus of attention among fish keeping enthusiasts. This article will combine hot topics and hot content in the past 10 days to provide you with a detailed analysis of the causes, symptoms and solutions of fish gill rot, and provide structured data for reference.

1. Common causes of rotten fish gills

What should I do if the fish’s gills are rotten?

According to recent analysis by breeding forums and veterinary experts, the main causes of fish gill rot include:

Reason typeSpecific instructionsProportion (discussion popularity in the past 10 days)
bacterial infectionInvasion by pathogens such as Flavobacterium columnaris42%
Water quality deterioratesAmmonia nitrogen exceeds the standard and dissolved oxygen is insufficient35%
ParasiteParasitic parasites such as Anthonylops and third-generation worms18%
other factorsTrauma, malnutrition, etc.5%

2. Identification of typical symptoms

According to recent cases shared by users on social media, the main symptoms of mumps are:

1.Swelling of cheek filaments: The cheek flap cannot be closed and appears dark red or off-white.

2.increased mucus: A large amount of mucus or bloodshot particles adhere to the cheeks

3.Shortness of breath: Fish frequently float or approach aeration equipment

4.Loss of appetite: Refusal to eat, decreased activity

3. Emergency treatment plan

Processing stepsSpecific operationsThings to note
Isolate sick fishHoused alone in treatment tankThe water temperature needs to be consistent with the original tank
water quality regulationChange 1/3 of the water and add 0.3% saltAvoid severe temperature differences
drug treatmentUse yellow powder or oxytetracyclineUse according to the dosage instructions
Oxygenation measures24-hour continuous oxygen supplyAir stone is more effective

4. Preventive measures (recent popular suggestions)

1.Regularly test water quality: Weekly testing of pH, ammonia nitrogen, and nitrite indicators

2.Scientific feeding: Adopt the principle of "a small amount and many times" to avoid contamination of residual bait

3.New fish quarantine: New fish entering the tank need to be observed alone for 7 days

4.Tool sterilization: Fishing nets and other equipment should be soaked in potassium permanganate before use.

5. Clarification of common misunderstandings

According to the live Q&A conducted by professional veterinarians in the past 10 days, special attention should be paid to:

1.Abuse of antibiotics: May lead to the emergence of drug-resistant strains

2.Ignoring environmental improvements: Mere use of medication without regulating water quality has limited effect

3.Improper mixing: Some fish will peck at the gills of sick fish.

6. Key points of nursing care during recovery period

1.Gradually resume feeding: Feed easily digestible food first

2.Continuous observation: Continue isolation and observation for 3-5 days after recovery

3.Enhance immunity: Added nutrients such as vitamin C

Through the above structured analysis and solutions, we hope to help aquarists effectively deal with the problem of gill rot. It is recommended to pay attention to water quality parameters regularly, detect and treat early, and keep your fish in a healthy state.

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