Keeping goldfish is an interesting hobby because each goldfish has its own unique personality. Let’s explore Aqua Plants Hub to learn some interesting facts about goldfish.
History of Goldfish

Goldfish are a domesticated version of wild carp from East Asia. Their wild ancestors were silver-gray in color. They were kept by many during the Song Dynasty (960 AD – 1279 AD).
When goldfish breed, due to genetics, there will be fish with bright red, yellow, or orange colors. At that time, goldfish symbolized wealth and nobility. People only kept goldfish in natural ponds and lakes.
By 1276, during the Ming Dynasty, goldfish were kept indoors. At this time, goldfish had other colors such as: red, white spots, yellow…..
Do goldfish eat?

These goldfish can go without eating for over three weeks and still live well. Goldfish are small omnivores with a diet mainly consisting of aquatic plants, insects, fish eggs, and larvae. They also eat prepared pellets.
How many species of goldfish are there?

There are hundreds of goldfish species. Each goldfish with different shapes, fins, colors, and eye pairs is a different species. However, while there are hundreds of different types, they mostly belong to 15 different categories.
Distinguishing Male and Female Goldfish
Female goldfish are known to have a plump, round body, while males are slimmer with longer and more angular pectoral fins. The vent of the female fish is more pronounced.
During the breeding season, males develop breeding stars on their fins and gills, making them easier to identify. In normal months, you can find white filaments growing on the gills of males.
What is the lifespan of goldfish?
Some goldfish species have been known to live over 40 years. Of course, all of this depends on proper fish care. Factors such as tank mates, tank conditions, water temperature, food, and many other factors can contribute to the lifespan of goldfish.
Do goldfish change color?
Goldfish adapt well to their environment and turn white when exposed to limited sunlight.
This phenomenon occurs because sunlight helps the pigments on the skin (scales) of goldfish to develop. Without it, they turn a milky white. Because they lack pigmentation, these white goldfish are very sensitive to UV rays.
Goldfish can grow quite large
You might think these are small fish that can be quite chubby. Their bulging eyes and heads also take up a portion of their weight. However, the largest goldfish can be as big as a cat! The average size of a goldfish is about 20-25cm.
Since they symbolize wealth and luck, we believe that the bigger the fish, the more luck you will receive. To raise large goldfish in a small pond, you should pay attention to two things: food and water temperature. They are tropical fish, so warmer temperatures will stimulate their growth.
I hope this article helps you care for and understand your goldfish better.
Phạm Thị Quyên

