Don’t be fooled by the tiny bowls bettas are kept in at the store. A single betta requires a minimum of one gallon of water ...

But in your home tank, there's no bacteria to be found. You have to introduce it, and that's where a lot of goldfish owners slip up because you can't just buy a fish the same day you get your tank.

Outdoor goldfish tank, I would love this, if I lived in a warm climate. The size of the fish tank is 1.6m x 2.5m x 0.6m, it ...

It's called How to Train Goldfish Using Marine Mammal ... This is because the fish bacteria grows best at fish temperatures (temperature of the aquarium or pond) and not human body temperature ...

Goldfish may look small and cute in your home, but in the wild it's a different story. Releasing them into your local stream or lake is a bad idea. Following is a transcript of the video.