Caojin fish is the ancestor of goldfish, which was discovered in China more than 2,000 years ago. Grass goldfish has rich colors, strong physique, strong resistance and adaptability, so it is favored by many people. To raise grass goldfish, it is necessary to control the change of water temperature and maintain good water quality, so appropriate stocking density, feeding, light and water change can ensure that the fish are healthy and colorful. The specific operation method is as follows:

Step 1. Purchase fish tank and filter equipment

The general length of grass goldfish raised in the pool can reach 35CM, so for fish Children have a good growth environment, the length of the tank should not be less than 50CM, and the length of the tank should exceed 80CM or more. In addition, the number of fish to be raised in the future should also be considered. Generally, a 50CM tank can raise 4 to 6 grass goldfish with a length of 5 to 10 cm, and an 80CM tank can raise 6 to 8 grass goldfish with a length of 5 to 10 cm.

The filtration equipment can keep the water ecology in good condition. The grass goldfish eats a lot and has a lot of excrement. In the hot summer, the excrement will produce doubled harmful substances. There is no powerful filtration equipment to digest and decompose the water quality. It will deteriorate rapidly, and the fish will die in large numbers. When purchasing filtration equipment, it is necessary to consider whether the filtration speed is compatible with the amount of water. Generally, it is necessary to ensure that the amount of water filtered per hour is 8 times the amount of water in the tank.

Step 2, fish should be well watered first

(1) Rinse the new tank and filter material with tap water, then fill with tap water and soak in potassium permanganate, Or you can add kosher salt until saturated (not edible salt), soak and sterilize for 1 day.

(2) After the disinfection is completed, put in tap water, install the filter equipment and start running.

(3) After 3 days, if the water quality is clear and not white, you can put a few fry into the tank to observe the condition. After 10 days, the condition of the fry is normal, indicating that the digestive system in the filter equipment has been successfully established. At this point, the water in the fish tank has finally been raised, and you can buy grass goldfish with confidence.

Step 3. Choose a healthy grass goldfish

(1) Look at its shape

The grass goldfish must have symmetrical eyes and body shape, and the body must not be deformed or twisted , the fins must not be defective, atrophied, distorted, and the scales are not defective; the fish that are sick and hungry are weak, and those who are thin and not full cannot be bought; there must be no parasites, no damage, and no Local congestion, standing scales and other phenomena; feces normally sink to the bottom and do not stick to the anus.

(2) Observe its state

Healthy grass goldfish do not stray from the group, swim freely in the water, each fin stretches naturally, swims actively and quickly, and has a sensitive response when fishing. On the contrary, there will be outliers, uncoordinated posture, impatient swimming, and shortness of breath.

(3) Check its color

Grass goldfish should choose a relatively bright body color and shiny scales.

Step 4. Sterilize the new fish into the tank

(1) Wash the outside of the plastic bag containing the fish with clean water and put it into the aquarium. Synchronize the water temperature in the bag with the water temperature of the new fish tank, usually about 30 minutes.

(2) Pour the water in the fish tank into a clean basin, blend 20ppm of potassium permanganate, wait for the fish in the plastic bag to adapt to the temperature, put it into the basin, soak it for 2 minutes, remove it and put it out. into the fish tank.

Step 5. Daily management of feeding

(1) Feeding

Grass goldfish is an omnivorous fish and can be fed with bloodworms, water worms, artificial Feed and other foods can be mixed and fed to meet all the nutrients needed to make the body color more beautiful. Live bait can be sterilized with low concentration of potassium permanganate and then cut into appropriate size before feeding, so as to avoid spoilage or various pathogens from contaminating the aquarium, causing tropical fish to be infected with bacterial rotten gills, rotten skin, enteritis and other infectious diseases. Feeding too much will lead to indigestion and illness of the lantern fish. Leftover food residues and a large amount of feces will cause the water quality to deteriorate. Therefore, the food residues should be cleaned and salvaged in time. Family raising generally only needs to feed 1 to 3 times a day, and the feeding amount should be eaten within 5 to 10 minutes.

(2) Change the water

The tap water should be exposed to the sun for about 1-2 days before the chlorine gas in the tap water, which is harmful to fish, can be completely volatilized. Generally, change the new water once a week. In order to reduce the discomfort of the fish to the new water, only 20% of the new water can be changed each time. If the water is found to be turbid, the frequency of changing the water can be increased.