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Goldfish are dying

Pets Asked by Akshay Chawla on June 13, 2021

I bought four goldfish 4-5 months back. I kept them in a bowl of water, and was daily removing a glass of water and adding a fresh glass of water.

Starting 2-3 months ago, everything was fine. But slowly, one of the fish started getting black spots on outer surface of its body and then died. Then, one by one, the rest of the fish also died.

This also happened when I tried keeping them in aquarium which also had an air pump for oxygen. Can anyone let me know what was the reason that this happened?

Thanks.

3 Answers

The result may be ammonia poisoning.

The solution may be to add a filter into your tank, and make sure you don't overpopulate the fish tank either. Don't feed them too much.

Further, each goldfish needs 3 gallons of water per inch of their body length or more.

References:

Answered by user8150 on June 13, 2021

There might be several reasons for fish to get ill and die. Over feeding might result in toxic substances developing in the water. This often weakens or kills the fish. The fish might also have been infected before you bought them.

You need a water filter to handle the waste from your fish, and the fish tank needs to be cycled before you add fish or other animals to the tank.

"Cycling a tank" means letting bacteria that break down waste grow and multiply so they can keep the water clean. These bacteria convert fish waste to plant food, this is called the nitrogen cycle.

Answered by trond hansen on June 13, 2021

Ammonia could have been the reason, or you could have been using water that wasn't filtered enough in the first place. They also would be way too crowded in a bowl, especially with four.

Answered by Monotremes on June 13, 2021

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