1, fish culture should pay attention to the density of fish. Too high density is not conducive to lifting water and viewing. Usually, a fish tank with a diameter of about 50 cm and a height of about 40 cm is suitable for raising goldfish with four tails of about 15 cm.

2. Pay attention to the ratio of the size of the fish to the size of the tank, pay attention to feeding, feed the fish in a fish tank once a day, and develop the habit of regular quantitative farming. Because the water body is too small and the filtration is limited, too much discharge will lead to the deterioration of water quality. Changing water is the most taboo to change water in the whole cylinder. Porcelain basin fish farming is not only to satisfy people's interest in fish farming, but also to satisfy people's interest in viewing.

It is suggested to buy four butterfly-tailed goldfish, and to change the water, you have to suck it with a pipe or pump water from the fish tank with a submersible pump. You have to do it yourself if you add water. You can put some colored stones in the stones. Don't keep turtles in ceramic fish tanks.

Extended data:

Matters needing attention in fish farming:

First, choose healthy goldfish.

Healthy fish swim in the middle and lower water, foraging, swimming naturally and leisurely, and the tail fin is clear, transparent and elegant. ?

2. Don't rush into the tank after the goldfish is bought back.

Put the plastic bag containing fish in the fish tank 10 to 20 minutes before opening it, let the water in the tank flow back into the bag several times and gradually mix with the original water in the bag, so that the goldfish can gradually adapt to the water temperature and quality. If there is a light, turn it off. Fish are quiet in the dark and are not easily frightened.

3. Don't change the water temperature sharply.

When buying fish, pay attention to the water temperature of the aquarium and the water temperature of your own aquarium. The deviation should not be too big. Generally within 4℃ is allowed.

4. Don't change too much water at a time.

Fresh water must be stored for a day or two. The purpose is to remove some chlorine from water, and also to make the temperature of new water and old water close.

References:

Baidu encyclopedia-goldfish