They can grow anywhere from a couple of inches to over 12 inches long. This means there is a variety to suit everyone’s style. Goldfish have been extensively crossbreed so now they come in all sorts of colors and shapes. They can even be trained to learn new behaviors and tricks through positive reinforcement. They quickly learn your feeding routines and will become more active and head to the surface when food is due. Most of their time is spent swimming in the middle and upper levels of the tank. This becomes particularly impressive with bigger shoals. They enjoy the company of their own kind most of all and will display schooling behaviors when kept in groups. ![]() It is rare for them to display aggression and because of this they are easily bullied by more boisterous fish. Goldfish tend to get on well with other peaceful species. You can expect the common Goldfish to live between 5-10 years if kept in a healthy environment. One Goldfish is usually under $5, but the most attractive varieties will cost much more. Since they are bred in large numbers you can find them quite cheaply. You will not struggle to find one unless you are looking for a specific rare variety. Because of this selective breeding you can now find many varieties that come in different colors, shapes, and sizes.Īs such a popular freshwater fish they are bred extensively and are sold in pretty much every pet store. ![]() Goldfish became popular in China over a thousand years ago where they were selectively bred. They are a member of the Cyprinidae family and are native to the cold waters of East Asia. Goldfish ( Carassius auratus) are possibly the most popular pet fish in the world.
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