1, goldfish, you need a suitable fish tank.
Fish tank is the home of goldfish, where they live, so it is very important to choose the right fish tank. Goldfish don't grow very big, usually more than several, so don't choose a fish tank that is too small, which will make the fish look crowded and easy to die of lack of oxygen. So keep a few fish according to your own plan, and then choose a fish tank, and it is better to choose a slightly larger one.
2. The aquarium for keeping goldfish needs careful arrangement.
Just bought a fish tank, you can add a small amount of yogurt and beer to the empty tank, and then release the little goldfish when the brown algae disappear and grow green algae. This kind of green algae can be said to grow naturally, while goldfish have been kept indoors, and the green algae outside are mixed with many other bacteria, which is not conducive to the health of goldfish.
You can also put some aquatic plants, rockeries and stones in the fish tank to create a relatively fresh environment. Aquatic plants can purify water and provide some oxygen, and rockery stones provide them with places to play. If possible, you can buy a heating rod, and goldfish will live more comfortably. Constant water temperature is also important for the overall survival rate of goldfish.
The oxygen-increasing system in the fish tank can be determined according to the number of goldfish you buy. Generally, you don't need to buy it when the density is low, unless you want to raise a lot of fish in large quantities. In order to prevent goldfish from dying of lack of oxygen, you need an oxygenation system. And my suggestion is that it is better to configure an aerobic system, which is more durable and safer.
Third, the water quality of goldfish should be stable, and it should be diligent to change water reasonably.
It is best not to raise fish directly from the tap water in the city. You can connect it with a basin in advance, add some soda to let chlorine out, remove its chemicals and ensure the health of water quality. You can change water every three or four days in summer, every ten days in spring and autumn, and every half month in winter. The greater the density, the more frequently the water should be changed.
Note that if you change the water frequently, don't change all the water in the fish tank at once, which will make the goldfish uncomfortable. Don't change more than one third of the water in the previous fish tank. Pump water slowly from the bottom, and try not to muddy the water in the tank.
Fourth, goldfish should not be lazy and keep up with the later maintenance.
Goldfish eat more, eat more, and eat as much as they are fed, which is easy to die. So be careful not to feed frequently.
Spring and autumn are about once a day. Summer activities are more frequent, you can increase the number of times, twice a day. In cold winter, the activity of goldfish is not as good as that in spring, summer and autumn, and the feeding frequency can be reduced to 2~3 times a week. The amount to be fed is subject to eating, and five to ten minutes at a time is enough.
Goldfish eat a lot, so there is a lot of excrement and it is easy to get muddy water. Remember to clean it regularly.
Fifth, choose healthy goldfish. Good health comes from good physique.
You must choose the fry carefully. Any fish with these symptoms, such as hoarfrost on the body surface, white hyphae on both sides of the abdomen and white spots on the tail, are all sick fish, and you absolutely should not. Choose lively fish from the school of fish, not those that often float their heads. Fish that often float their heads are prone to lack of oxygen, so they may not live for a few days when they are bought home.