Goldfish Maintenance
Goldfishes were first among the fishes and also the most common fishes that were kept as pets. They are popular because they are inexpensive and long lasting. They can even survive in ponds covered with ice, until they have sufficient supply of oxygen. Many types of goldfishes are available in the market. Because of selective breeding, different types of goldfishes are available which differ in color, shape, eye and fin configuration. Some of these fishes cannot survive in the wild and must be kept only in the aquarium. This is because of their attractive colors. Thanks to mixed breeding, the body of some fishes have been modified which is an obstruction in natural breeding. Such kinds of fishes are hand bred, but this procedure is very risky and has to be executed very carefully.
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Topic: Fish and Fish Care