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Interesting Facts about Goldfish

  • Goldfish are cold-blooded and their metabolism rate depends upon water temperature. These hardy freshwater fish belong to the species Carassius auratus.
  • Goldfish is a small member of the carp family. There are more than 500 species of goldfish found throughout the world. Some major varieties of goldfish are Bubble Eye, Calico, Black Moor, Shubunkin, Raukin, Panda Moor, etc.
  • Goldfish require subtropical to tropical climate. They live in the freshwater bodies with a pH of 6.0-8.0, preferably 7.5. They need a temperature range of about 40-90°F. Goldfish is about 3-6 inches in length. The largest goldfish can be 12-16 inches in size and about 3 kg in weight. Its appearance depends upon location, temperature, food and other factors. It has a paired pectoral and pelvic fins with one dorsal, anal and caudal fin. An average lifespan of a goldfish is about 5-10 years.
  • Wild goldfish live in the lakes, ponds and other water holes. They can be found in still and moving water. They have darker and paler color shades.
  • Goldfish come in different colors such as gold, pink and bronze. They possess the sub-colors such as calico and metallic.
  • Goldfish are omnivorous. Their diet includes plankton, insects, detritus, larvae, worms, lettuce, plants, peas, tiny mammals, small birds, amphibians and reptiles.
  • The reproduction cycle of goldfish is quite typical. It starts when the male fish mates with the female fish. Then the female lays almost thousands of eggs. The eggs hatch within 48-72 hours. Breeding occurs in indoor pools or aquariums throughout the year. When in nature, it takes place most during the summer. No parental care is seen. These fish become sexually mature at the age of 2. However, their period of maturation depends upon sufficient nutrition, water temperature and some other environmental factors.
  • Goldfish usually tend to live in groups. If they are released into the water in nature, they breed very rapidly. Their large population can disturb the native population. They are considered to be pests for other fish population. They are ideal as an aquarium fish.
  • If you wish to keep the goldfish in the aquarium, then you should be vary careful about their feeding, cleanliness and maintenance of the aquarium. You need to use a good water preparation chemical. Since goldfish don’t like to live alone, keep at least two goldfish in the aquarium. They need more carbohydrates in their diets. Avoid overfeeding the fish and add only enough quantity of food to be eaten fully within 5-10 minutes.
  • Goldfish should never be kept in small bowls. They need a spacious environment with high oxygen levels.
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