The Goldfish Tank explains that a female goldfish lays hundreds of eggs after mating with a male goldfish. This is also called spawning. However, goldfish are not easy to breed. A goldfish will rarely lay eggs in a home ... More »

Adult goldfish will eat baby goldfish when they are placed in the same tank. Goldfish females will also eat the eggs as soon as the male has fertilized them, so it’s a good idea to remove her and the male from the tank o... More »

Goldfish lay eggs that are amber in color and look slightly transparent. If the eggs turn white, they are infertile and do not hatch into goldfish. More »

Goldfish babies, or fry, change from black or dark-gray at birth to a golden color by age one. Environmental factors influence the degree of color they achieve. More »

In technical terms, goldfish don't actually get pregnant as they are not live-bearers, instead, they lay eggs. Signs of impending egg laying include food refusal after previously having a healthy appetite, less activity ... More »

A number of quick, relatively painless methods have been devised to humanely dispatch fish. A commonly used method is clove oil to anesthetize the fish, followed by an alcohol bath to kill the fish. Another option is to ... More »

A goldfish indicates stress by gasping at the surface of the tank, refusing to eat, swimming in strange patterns or developing white spots on its body known as "ich." A goldfish may also develop fungus or a bacterial inf... More »