Tish, the oldest goldfish in recorded history, lived to the ripe old age of 43. In his later years, his scales actually started changing from gold to silver.

The average lifespan of a common goldfish (Carassius auratus), is 10-15 years, but the current Guinness Record for the oldest goldfish ever was set by a male goldfish named Tish that remarkably reached the age of 43. He spent his life in a fish bowl in North Yorkshire, UK, under the care of Hilda Hand and her son Peter. The latter won Tish as a prize at a fairground roll-a-penny stall in 1956, when he was only 7 years old, and after he left the family home, his mother continued looking after the aging goldfish. No one really expected Tish to reach his 40s, considering that most goldfish barely make it past a decade, but somehow he did, and, 24 years after his death, he still holds the record for the oldest goldfish ever.

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In a Facebook post that went viral last week, a Thai woman shared a story about how she treated her pet goldfish and managed to save its life even though its tail and part of its body had rotted away.

In a post that ended up gathering over 110,000 likes on Facebook, Kanya Tantiwiwatkul wrote that six months ago she noticed that her pet goldfish wasn’t feeling too well. Its tail had rotted away completely, and part of its flesh had started to do the same to the point where she could already see bones sticking out. That’s when she took some photos of it and then went to an aquarium fish shop to ask for any medicine that might help. After seeing the pictures, the vendor told her that the fish had no chance and recommended that she throw it away and get a new pet. Kanya didn’t want to give up on the goldfish, so she bought some medicine and over the next six months nursed it back to health.

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Releasing pet fish into a lake might sound like a kind thing to do, but in fact, it is quite the opposite. Teller Lake in Boulder, Colorado, is making headlines for a bizarre surge in its goldfish population, after someone apparently dumped three or four of them in its waters a couple of years ago. The lake is now home to a whopping 3,000 to 4,000 goldfish that are putting its delicate ecosystem in danger.

The fish have multiplied beyond control – they’re eating up all the resources, spreading unnatural diseases, and threatening to overrun the lake’s natural species. Colorado wildlife officials say that humans are to blame.

“Dumping your pets into a lake could bring diseases to native animals and plants as well as out-compete them for resources,” said Colorado Parks and Wildlife (CPW) spokesperson Jennifer Churchill. “Everything can be affected. Non-native species can potentially wipe out the fishery as we’ve put it together.”

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3,000 goldfish from 14 different countries around the world competed for the title of “World Goldfish Queen” in the first ever International Goldfish Championship, hosted in Fuzhou, China’s Fujian Province.

A warehouse full of thousands of big white bowls of water sure doesn’t sound like the beauty pageant events we’re normally used to, but that’s exactly what it was. Last Saturday, a panel of judges gathered in the city of Fuzhou to determine which of the slippery contestants should be crowned most beautiful goldfish in the world. In an interview with Reuters, judge Ye Qichang said: “We judge goldfish mainly by five criteria: breed, body shape, swimming gesture, colour, which is very important, and overall impression.” And although color counts for much, the favorite of the fishy competition impressed the judges with its size – weighing 1.75 kilograms (3.9 pounds), the giant goldfish reportedly moved arund his tank very gracefully, which obviously won it extra points. “Not all goldfish can grow this big. Many factors such as breed and breeding method may affect their size. A goldfish cannot grow into that size if it suffers any hardship or major illness during the breeding. So it is a very rare one,” Ye concluded.

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