Aquarium fish Disease and Treatment Of Diseases in Hindi Urdu with English subtitles

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How to Treat Fish Diseases

Three Parts:

Sometimes fish become victims of disease. Some fish diseases are easy to treat, where others are deadly. Many aquarists have a quarantine tank set up to acclimate new fish in order to quarantine them from the main display tank and prevent potential disease contamination. If fish become ill in the main display tank, they can be removed from the main display tank and put in the quarantine tank, which is then a hospital tank, or a hospital tank can be set up to treat the diseased fish.Veterinarian, Pippa Elliott MRCVS, suggests fish owners plan ahead. "A specialist fish vet is best placed to treat aquatic pets. You can find a fish vet by visiting the American Association of Fish Vets website at"


Identifying Diseased Fish

  1. Recognize bacterial infections.Bacterial infections come with different symptoms that you may be able to identify through observation. These symptoms can include the following:
    • Inactivity
    • Faded color
    • Frayed fins
    • Bloated body
    • Cloudy eyes
    • Abscesses
    • Open sores
    • Red streaks through the fish's body
    • Redness of the skin, fins, or organs
    • Difficulty breathing
    • Bulging eyes
  2. Recognize fungal infections.Fungal infections can be associated with other types of illnesses. The symptoms of a fungal infection could include the following:
    • Strange swimming behavior including the tendency to dart around the tank
    • Small collections of whitish material growing on the fish's eyes, skin, or mouth
  3. Recognize parasitic infections.If your fish has a parasitic infection, its symptoms will differ from those of bacterial or fungal infections. Some symptoms to watch for include:
    • A lack of appetite
    • A tendency to be inactive
    • A film or unusual mucus on the fish's body
    • Worms or spots that you can see on or in the fish's body
    • Fast breathing
    • Scratching
  4. Recognizing other diseases.Some other diseases might be non-infectious, such as tumors, constipation, injuries, or even congenital abnormalities. Some diseases may be viral as well. Most diseases have treatments available, and proper filtration can help prevent recurrence of diseases whether the tank is freshwater or saltwater.

Setting Up a Hospital Tank

  1. Find a tank to use for the hospital tank.The hospital tank can be an inexpensive aquarium or an older unit not currently in use as a display tank. Do not use substrate (sand or gravel) or live plants. A filtration system that does not use carbon should be used in the hospital tank because carbon may negate some medicines.
    • Artificial plants may be used to comfort diseased fish. Other types of cover where the fish can hide may be comforting as well.
    • The carbonless filter used should also be lower power in order to avoid disturbing the fish too much.
  2. Use a reliable heater.The hospital tank's water must be kept at the appropriate temperature for your fish. Choose a heater that will not vary its temperature too much in order to keep the ailing fish comfortable and safe. Be sure to protect the fish from heater burns as well by blocking the heater from direct contact with the fish. This can be done with any kind of barrier to the heater, such as plastic mesh.
    • Pet stores or aquarium specialty stores can recommend other options for heater barriers.
  3. Use an air stone.An air stone in an aquarium can help replace oxygen in the water. This is particularly useful in a hospital tank because some medicines can reduce the amount of available oxygen in the water. Air stones are available anywhere aquarium supplies are sold.
  4. Keep the hospital tank in a dark room and dimly lit.Some diseases can be inhibited by little or no light, so keeping the aquarium minimally lit and in a dark room can help treat the diseased fish. This depends, of course, on the pathogen, but if your fish's ailment is one that needs light, keeping the aquarium dimly lit and in a dark room may help fight the disease.
    • Check with an aquarium specialist at your pet store, aquarium specialty store, or a veterinarian to see if your fish's ailment can be inhibited via minimal lighting.

Treating Ailing Fish

  1. Move the fish to the hospital tank.Ensure that the hospital tank's water is as similar to the main display tank's water as possible in both temperature, water source, and regular additives, including dechlorination. Prepare two additional tanks or buckets of water of at least 2.5 gallons that are also filled with water as close to the same as the main display tank as possible. Use a net to move the fish to the first bucket.
  2. Add salt to the water.Add 3/8 of a teaspoon of salt per gallon of water to the first bucket every two minutes up to ten minutes. Move the fish to the next bucket of water and wait 15 minutes. After the 15 minutes have passed, add another 3/8 of a teaspoon of salt per gallon of water to the second bucket. Wait another 15 minutes and move the fish to the hospital tank.
  3. Treat the fish.Check online to help diagnose diseases. You may also want to secure the help of a veterinarian with fish experience to help diagnose. Once you have determined the type of disease the fish is stricken with, obtain the appropriate medicine.In the hospital tank, administer the medicine. Be sure to follow the instructions for the treatment you are administering.
  4. Monitor the fish for ten days.Keep the fish in the hospital tank for ten days during treatment. Replace 30%-50% of the water in the hospital tank each day to help keep it clean and fresh. Move the fish into a shallow bowl each day and observe—possibly with a magnifying glass—to track the progress of healing and determine at the end of the ten days whether the fish can return to the main display tank.
  5. Disinfect the tanks.To prevent the spread of the disease after the fish has been treated, be sure to sanitize all tanks. This can be achieved by the use of dilute hydrochloric acid or potassium permanganate. Both are available at aquarium specialty stores and possibly pet stores that cater to aquarists. Be sure to follow instructions for use in sanitizing fish tanks—let stand in the tank with water for two to three days, then thoroughly clean and sanitize the tank.
    • Refill the tank after sanitization and restart filtration system to get water back to normal for fish.

Community Q&A

  • Question
    My fish has a cloudy appearance on its tail. What could this be?
    wikiHow Contributor
    Community Answer
    It could be fin rot, in which case you can purchase some medicine to treat it. The cause could be the temperature of the water or the water quality, so make sure those factors are correct for your fish.
  • Question
    My goldfish is sick and I have a medicine. Can I put it in the main tank? If I can, should I turn off the filter for some time as the medicine description says no need of hospital tank?
    Community Answer
    Leave the filter on to cycle the medication for the fish.
  • Question
    My clown knife has a fungal infection that has made him blind. He has white bulges where eyes should be. He also has a few white dots on his body, what can I do to treat him?
    wikiHow Contributor
    Community Answer
    Do water changes every couple days and test the water accordingly, it will really help him heal. You should also try out some medications from your pet store. One I always recommend is Melafix.
  • Question
    How can I treat a fungal infection?
    Community Answer
    Fungal infection treatments are sold at any fish store.
  • Question
    How could I treat ich? My friend's betta fish seems to have that.
    wikiHow Contributor
    Community Answer
    Stores that sell pet products will have ich medication for the tank.
  • Question
    Do I need to turn my UV light off when putting fish treatments in my pond?
    wikiHow Contributor
    Community Answer
    No, it's fine to leave it on.
  • Question
    There's a cloudy appearance over my fish's eye, how should I treat this?
    wikiHow Contributor
    Community Answer
    A common cause for a cloudiness in a fish's eye is poor water quality, definitely check your pH levels and work on getting them to a safe level for your fish. There are other causes as well, such as diet, etc. If your water is okay, antibiotics or a diet change could be the solution.
  • Question
    I cleaned my fish tank with soapy water by mistake, my fish are nearing death. How do I prevent them from dying?
    wikiHow Contributor
    Community Answer
    The best option is to put them in a tank with treated, non-soapy water and completely clean your aquarium. Replace the rocks or sand and wash every decoration and inch of the tank without soap and start a new cycle.
  • Question
    I have an Oscar who has come down with a fungal infection. I'm treating him with API pimafix. The directions say dose daily for seven days, but now my Oscar has stopped eating. What more can I do to help my Oscar and to get him eating again?
    wikiHow Contributor
    Community Answer
    Make sure to minimize stress, keep its water clean, keep treating it until it is better, and wait it out, the fish will get hungry enough soon.
  • Question
    Does raising the water temprature help to treat fungal infections?
    wikiHow Contributor
    Community Answer
    Yes, and also keeping the water very clean. Test the water every couple days and do partial water changes for the best results.
Unanswered Questions
  • Is there anything I can do for a fish that has fungus at home? (I can't get to pet store due to snow.)
  • There are some cloud like appearance in the tails and fins and some part of the body. What can I do for first treatment because there's no fish store in my town.
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  • Have a simple Fish-First-Aid-Kit ready at all times.
  • Prevention is better than treating. Always quarantine new fish.


  • Be extremely careful with medications and NEVER over-medicate.
  • Make sure that the plant food you use (if you have live plants) doesn't have a fish-killing side effect.

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