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What should I do if my goldfish grows white?

2026-01-11 00:00:28 Home

What should I do if my goldfish grows white?

White spots on goldfish are a common problem encountered by many fish keeping enthusiasts, usually caused by parasites or water quality issues. This article will introduce in detail the causes, symptoms, treatments and preventive measures of white spots on goldfish to help you quickly solve this problem.

1. Reasons why goldfish have white spots

What should I do if my goldfish grows white?

The main cause of white spots on goldfish is a parasitic infection called "little melon worm", commonly known as "white spot disease". In addition, deterioration of water quality, sudden changes in temperature or reduced immunity of goldfish may also induce this disease.

ReasonDescription
Small melonworm infectionParasites attach to fish and form white spots
water quality issuesHigh ammonia or nitrite levels
temperature changeSudden drop in water temperature causes stress in goldfish
low immunityMalnutrition or environmental discomfort

2. Symptoms of white spots on goldfish

The symptoms of white spot disease are more obvious. They usually appear as small white spots on the surface of the fish. In severe cases, they may cover the whole body. Goldfish also exhibit the following abnormal behaviors:

Symptomsperformance
white spots on body surfaceWhite particles appear on the fins, gill covers or body
friction objectsGoldfish frequently rub against tank walls or decorations
Shortness of breathRapid opening and closing of gills
Loss of appetiteRefusing to eat or eating less

3. Treatment methods for goldfish with white spots

Once you discover white spots on your goldfish, you need to take immediate treatment measures. The following are common treatments:

methodOperation steps
Heating methodSlowly increase the water temperature to 28-30℃ and maintain it for 3-5 days
salt bathAdd 1-3 grams of salt per liter of water and soak for 10-15 minutes
drug treatmentUse white spot net or methylene blue according to the instructions.
water quality regulationChange 1/3 of the water, strengthen filtration, and keep the water clean

4. Measures to prevent goldfish from growing white spots

Prevention is better than cure, here are some effective ways to avoid white spot disease in your goldfish:

measuresSpecific operations
Stable water temperatureAvoid excessive temperature differences and use heating rods to keep the temperature constant
Change water regularlyChange 1/4 of the water every week to keep the water fresh
Reasonable feedingProvide nutritionally balanced feed and avoid overfeeding
New fish quarantineIsolate and observe newly purchased goldfish for 1 week

5. Things to note

Here are some things to note when treating white spot disease in goldfish:

1. The temperature must be raised slowly, no more than 1°C per hour, to avoid stress to the goldfish.

2. Use non-iodized salt during salt bath to avoid damaging the gills of goldfish.

3. Turn off the ultraviolet germicidal lamp during drug treatment to avoid affecting the efficacy of the drug.

4. If the symptoms are not relieved after 3-5 days, you need to consult a professional veterinarian in time.

6. Summary

White spots on goldfish are a common but treatable condition. With timely detection, scientific treatment and effective prevention, your goldfish will surely recover. Remember, good water quality and a stable environment are key to preventing all fish diseases!

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