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.
Trending Now. Answers. Best Answer: The Goldfish eggs should hatch in two or three days depending on the temperature of the water in your tank. First it is important to realize that the eggs must be fertilized by a male Goldfish, after the eggs have been laid by a female Goldfish.