This linguistic confusion is why Americans call the Pennsylvania Dutch Dutch even though they're Germans. To review: this country is the Netherlands, its people are Dutch, they speak Dutch. There is no country called Holland, but there are provinces of North and South Holland.
In clean, uncrowded conditions in tanks or ponds, goldfish grow fast. They can grow to a few inches (1 to 4 inches) within the first year. It really depends on their genetics and living situation. It may take a year or two before they change color from brown to gold or whatever color their parents were.
Confidence votes 167. The average lifespan of a goldfish is about 10-15 months with improper care. Many die before that because of poor care such as overfeeding, having too small of a fish tank, not having a good enough filter, forgetting to feed them, ETC.The oldest recorded goldfish lived to be 44 years old but died in 2003.The average lifespan of a goldfish is very flexible and questionable depending on the care provided and the environment the fish is placed. goldfish kept in a bowl will live for about three months. A two goldfish kept in at least a 10 gallon tank with a heater, gravel, light, plants, decor, healthy food, filter, â¦ and thermometer can live up to 25 years!