Do Goldfish Need a Filter?

Yes. Goldfish, as well as most fish, need a filter. It helps pump oxygen into the water and keeps the tank cleaner for longer.

Can goldfish live without a filter?

The belief that goldfish need a filter is incorrect. Goldfish don't actually need filtration and can live long lives, as you may have seen, without filtration. The longest-lived goldfish, Tish, lived to 42 years old in a regular fishbowl.

Can a goldfish live without a filter or air pump?

As it has been stated, goldfish do not always require an air pump to survive. It can do well in a tank that is well oxygenated for as long as it normally can. As long as there is enough surface movement that translates to oxygen, then the goldfish can live just fine without an air pump.