Clair snagged a three-pounder in 2013.Ĭommercial fishermen on the Great Lakes have started making a profit from the invasive species. A British teen caught a whopping five-pounder in 2010, and a fisherman on Michigan’s Lake St. People around the world occasionally pull in monster goldfish, a far cry from the miniature versions we’re accustomed to. But with enough food, proper water temperatures, and ample room to roam, goldfish can balloon. The fish’s size is usually constrained by the size of its tank. They’re known to carry disease and parasites, as well as breed with wild carp in the area.īetween 3,000 and 4,000 goldfish were discovered in a lake near Boulder, Colorado, in 2015, and researchers have even found large goldfish in Lake Tahoe. Goldfish go from cute to villainous when released into the wild. According to the Guinness Book of World Records, the world’s longest pet goldfish is 18.7 inches and is owned by a man in the Netherlands. If you feel like a challenge, try counting the number of scales on a goldfish. Their ability to hear comes from small bones near their skull that link their swim bladder and their inner ear. The fish are known for having large eyes and great senses of smell and hearing. They also don’t have teeth and instead crush their food in their throats.
They don’t have barbels, sensory organs some fish have that act like taste buds. Goldfish have two sets of paired fins and three sets of single fins. ( Read more about the history of goldfish here.) Goldfish first arrived in Europe in the 1600s and the United States in the 1800s, becoming what is likely the first foreign fish species introduced to North America. But mutations and breeding over the years created goldfish' signature orange, red, and yellow pigments found in the over a hundred varieties of the fish today. Prussian carp, from which goldfish were domesticated, are traditionally a dull, gray-green hue. There’s a common misconception that koi are large goldfish, but they are distinct species. They even share a name with a cracker, fondly known as the “snack that smiles back.”ĭon’t confuse goldfish with its oversized cousin koi, another type of domesticated carp. The fish are now ubiquitous in bowls throughout homes, classrooms, and doctor’s offices. They were seen as a symbol of luck and fortune, and they could only be owned by members of the Song Dynasty. A type of carp, goldfish were domesticated nearly 2,000 years ago for use as ornamental fish in ponds and tanks. Thank the Chinese for today’s beloved aquarium mainstay, the goldfish.
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