Goldfish are amazing pets. They are among the most popular pet fish in the world. They are beautiful and colorful too. Here are some amazing facts abut the interesting Goldfish.
1.) Goldfish lack a stomach and only have an intestinal tract, and thus cannot digest an excess of proteins. So it is important not to over feed them.
2.) Goldfish may change their color by varying the spectrum of light under which they are kept.
3.) Goldfish produce pigment in response to light. If a goldfish is kept in the dark it will appear lighter in the morning, and over a long period of time will lose its color.
4.) Goldfish can grow to a maximum length of 22 inches 58.42 cm and a maximum weight of 9.9 pounds or 4.5 kg.
5.) The longest goldfish measured was 47.4 cm (18.7 in) from snout to tail-fin end in Hapert, The Netherlands.
6.) The longest Fancy Goldfish measured was an Oranda called Bruce which measured at 37.2 cm (15 in) in 2002.
7.) Goldfish may live more than 20 years, but most household goldfish generally live only six to eight years.
8.) The oldest recorded goldfish lived to 49 years.
9.) The collective noun for a group of goldfish is a "troubling" of goldfish.
10.) Goldfish can survive if ice form on the pond's surface, as long as there is enough oxygen remaining in the water and the pond does not freeze solid.
11.) Italy passed a law in 2005 which banned the use of goldfish as carnival prizes. Rome has also banned the keeping of goldfish in goldfish bowls, on the premise that it is cruel for a fish to live in such a small space.
12.) Goldfish have a memory-span of at least three months and can distinguish between different shapes, colors and sounds.
13.) Although edible, goldfish are rarely eaten.
14.) In July 2010 a goldfish measuring 16 inches 0r 41 cm and 5 pounds or 2.3 kg was caught in a pond in Poole, England, thought to have been abandoned there after outgrowing a tank.
15.) A goldfish named "Goldie", kept as a pet in a tank in Folkestone, England, was measured as 15 inches or 38 cm and over 2 pounds 0.91 kg, and named as the second largest goldfish in the world.