Why do goldfish turn white?

Answer

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.

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.

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Q&A Related to "Why do goldfish turn white?"
I have seen a few different theories on this and have no idea what is correct. Fish have strange chemistry to their bodies and some folks think it is a reaction to not enough sun,
http://www.ask.com/web-answers/Science/Nature/why_...
I do not believe they actually turn white, but they are reputed to loose colour. There is a very informative article here :-http://en.wikipedia.org/wiki/Goldfish.
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Goldfish naturally go through color changes as they mature and white is normal. You can
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Goldfish have several different types of skin cell that determine the coloration of the fish. Those present in black coloration are called melanophores and they contain melanin, a
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