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Related Articles & Questions
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- Vet Q & A
My fish have white fuzz, aren't eating, and are lying down. What's up?
Thanks for reaching out about Fish. Test and correct water quality for pH, ammonia, nitrites and nitrates. If all fish are affected, water quality problems the most likely. Alteration can lead to increased mucous production from the skin (white stuff), but fungal dermatitis or parasites are also possible. A veterinary visit is recommended if the water quality if appropriate, to assess and provide a diagnostic/treatment plan. Good luck.
Updated on September 24th, 2025
- Vet Q & A
My axolotls keep getting fungus; water tests are good. What's wrong?
Thanks for reaching out about your axolotl. Fungal spore are ubiquitous in the environment but a UV sterilizer can help. There are anti-fungal treatments to add to the water or dip treatments that could also help. A veterinary visit is recommended to assess and provide a diagnostic/treatment plan. Fungal infections are usually secondary problems, so review environmental parameters such as water temperatures, pH, ammonia, nitrates and nitrites. Review diet to ensure well rounded nutrients. If wanted, you can arrange for a private consultation. Good luck.
Updated on September 24th, 2025
- Health & Wellness
My parrot fish has thread-like growths after metronidazole. Treatment?
Without an image, it is difficult to make detailed recommendations. In general, maintain pristine water quality and chemistry. Monitor for elevated ammonia or nitrite levels and perform partial water changes as needed. Use only conditioned water that is temperature matched to prevent stress or shock. Consider adding in a second antibiotic, such as Kanamycin, to treat gram negative bacterial infection. When treating the tank, be sure to remove the carbon filter insert during treatment.
Updated on September 24th, 2025
- Health & Wellness
My fish has white spots and pink growths. Is it contagious or serious?
It could be early ich (white spot) infection or another infection (bacterial or fungal). To be safe, separate him into a quarantine tank and monitor for any change. You can treat for ich as you did it in the past if indicated. Bacterial and fungal infections have different treatments, so I would be hesitant to recommend a specific medication without more information or a definitive diagnosis. You can use plain aquarium salt (NOT table salt or Epsom salt). As a general tonic to reduce stress, increase gill function, treat minor infection of many types and to aid in recovery. This can be added to the quarantine tank at 1 teaspoon per gallon of water. Treat for 10-14 days then reassess the condition.
Updated on September 24th, 2025
- Health & Wellness
Why is my fish sick, not eating, gasping, and darting in its tank?
Check water chemistry first. Use a home test kit or submit a water sample for testing. The local Petco may do this for free or for a small fee. Aim for an absence ( 0 ppm) of ammonia and nitrites with nitrates at 20 ppm or less. Perform partial water changes, no more than 30% at a time, to stabilize chemistry and/or to improve water quality. Use only conditioned water that is temperature matched to prevent stress or shock. Check water temp as well. Any of these can drive a fish to the surface. The "flashing" (darting about) can be due to infection (bacterial, fungal or parasites). Consider a broad spectrum antibiotic or an "all in one" product to treat multiple infections. Look in the Aquarium section of the local Petco for options. Follow label directions carefully and remove the carbon filter insert during treatment if indicated.
Updated on September 24th, 2025
