Gold fish do not technically turn white, but lose color pigmentation when not exposed to enough natural sunlight. The cells responsible for maintaining the bright coloring of goldfish respond to light levels. Fish kept indoors in dark environments fade in color over time because their pigment cells are no longer chemically reacting to bright light.Know More
Goldfish are known for their many shades of bright orange coloring. Some goldfish are speckled with other colors. In their natural habitat, they are constantly exposed to healthy doses of natural light. Sunlight interacts with the body chemistry of the goldfish to bring out their bright coloring.
Placing indoor goldfish in a fish tank, with artificial lighting that mimics the rays of the sun, helps them keep their golden color.Learn more about Aquatic Pets
Although there is little proof, rare cases have indicated the possibility of cannibalism in goldfish. The National reported an incident in which goldfish ate other fish after an earthquake, leaving them of food for an extended period of time.Full Answer >
Goldfish may stop eating due to overfeeding, boredom with their food, stress or sickness. Poor water quality or a stressful environment can also make fish avoid food.Full Answer >
Goldfish live in temperate bodies of freshwater and have a preference for murky conditions. This breed is hardy and can endure temperatures near freezing, provided their habitat has enough oxygen and remains unfrozen. In the winter, outdoor goldfish exhibit dramatically decreased activity and remain in this state until spring.Full Answer >
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 add eight Alka-Seltzer tablets per gallon of water, which releases carbon dioxide to kill the fish quickly. However, RateMyFishTank.com suggests freezing the fish afterwards to ensure that it is dead.Full Answer >