Fish Breeds – Gold Fish
The goldfish (Carassius auratus), was one of the earliest fish to be domesticated, and is still one of the most commonly kept aquarium fish. A relatively small member of the carp family
Goldfish will grow faster if they are fed a higher protein food, or are fed more often, and, given an adequate food supply, they will grow faster the warmer the water temperature. In ponds, goldfish usually grow quite slowly, as their growth rate is minimal over winter.
They may grow to around 6 to 8 inches (15 to 20 cm) but possibly more. If kept indoors in large, or heated, aquaria they will reach this size sooner and potentially grow even larger.
Life Span
The lifespan of goldfish is variable. The record is 43 years, but it is uncommon for goldfish to live this long. Goldfish usually live quite long when kept in large aquaria or outdoor ponds, up to 15 to 20 years is not unheard of. In smaller or heated aquaria, a lifespan of five to ten years is quite achievable.
- The goldfish is usually classified as a coldwater fish, and it can live in an unheated aquarium.
- The goldfish produce a large amount of waste both in their faces and through their gills, releasing harmful chemicals into the water.
- It may be the amount of water surface area, not the water volume, which decides how many goldfish, may live in a container, because this determines how much oxygen diffuses and dissolves from the air into the water; one square foot of water surface area for every inch of goldfish length (370 cm²/cm).
- Goldfish, like all fish that are kept as pets, do not like to be "petted". In fact, touching a goldfish can be quite dangerous to its health, as it can cause the protective slime coat to be damaged or removed, which opens the fish's skin up to infection from bacteria or parasites in the water.
- Should not be overfed as Goldfish are opportunistic feeders. When an excess of food is offered, they will produce more waste and faeces.
- Since they produce lot of wastes, a small bowl is ideally not fit for them. They should be kept in well-filtered aquariums.
Link for more info
http://www.kokosgoldfish.com/care.html
http://www.goldfishconnection.com/
http://www.kindplanet.org/goldfishcare.html
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