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Gold fish is a cold-blooded creature and its metabolism entirely depends on water’s temperature. Quantity of gold fish kinds runs to 500.Lives in freshwater ponds with pH 6.0-8.0, preferable 7,5. Needs temperature 40-90F. Its length is from 3,5 till 15 centimeter. The largest representative can reach 40 centimeters in length and almost 3 kilograms of weight. Such growth depends on location, temperature, feeding and other factors. It possesses twin pectoral and abdominal fins and single dorsal, pelvic and caudal fins. They live on average from 5 to 10 years.
Wild goldfish, living in the lakes, ponds and other water basins, have more saturated dark and light tints.
Goldfish exists of different colors and tints, such as gold, pinky, bronze. It can also be of metallic color.
The diet of goldfish consists of plankton, insects, larvae, worms, salad and other plants’ leaves, peas, tiny crustaceans, etc. Diet must include more carbohydrates and less protein.
Reproduction is typical
A male goldfish copulates with a female one, whereupon the latter lays thousands of eggs. The eggs hatch within 24 or 48 hours. In closed basins and tanks selection is year-round, while in nature it is only in summer. They grow to sexual maturity to the age of two years. Nevertheless, nutrition quality, water temperature and some other environment factors influence maturing period
Often live in groups
Once they get into the pond in any area, goldfish start breeding very quickly thus breaking the populations of local fishes. They have amazing appetite and eat as much as they are given. That is why it is important not to try too hard and not to overfeed them. It will save you also from the problem of quick tanks contamination.
To make feeding more variable you can feed them with shelled peas puree and blanched vegetable leaves. Shrimps may be given as a delicacy.
Most often rival between each other for food
Goldfish coloration attracts not only people, but also predators. Hence, if you’ve got other pets you should look after them, in order for one would not eat another.