![]() Unfortunately, despite traditions, experts generally agree that most goldfish bowls are unsuitable for goldfish – keeping goldfish in one can be considered inhumane. Sadly, many do not live this long in captivity.įurther selective breeding has led to hundreds of varieties of goldfish, many not even gold in colour! Goldfish can live for up to 15 years, though have been known to live to almost 30. Goldfish can learn to be hand fed, recognise colours or even perform tricks. The world record holder was almost half a metre in length! Despite the old saying, goldfish have memories that last at least 3 months and are quite intelligent for fish. However, they can reach 15-30cm long or more if they are moved to larger tanks or fishponds. Goldfish are a freshwater fish that are usually a few centimetres long. First to rich Westerners and then to everyday folk as they became more widely available. From China, they spread around the world. In Imperial China, the gold colour was considered a symbol of wealth and royalty it was sometimes even illegal for commoners to keep goldfish with gold or yellow scales. These colourful carp were bred together to make the mutation more common resulting in a new domesticated variety with golden scales. The goldfish’s bright orange and yellow scales are thought to be a mutation of the normal silver scales found in carp. Having a lid with a heat lamp and thermometer will enable the temperature to be controlled, preventing dangerous fluctuations.ĭespite being found in every pet shop, fish farm, garden centre, and even funfair up and down the country, goldfish likely originated in far-off China.The best environment is a large filtered rectangular tank.Add the water amount to the weight of your fish tank to get your total. Each gallon of water weighs a little more than 8 pounds. Weight: Not only should you take into account how heavy the tank itself is, but you will have to consider the water needed to fill it as well.The more surface area of the water that is exposed to the air means more oxygen available to fish. ![]()
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