Method for cultivating koi fish in fish tank

Koi fish doesn't have strict requirements on water temperature and quality. The suitable temperature range is 2℃ ~ 30℃, but it can't resist the sudden change of water temperature and the sudden temperature difference exceeding 2℃ ~ 3℃, so koi fish will feel uncomfortable. The optimum water temperature is 20℃ ~ 25℃. It needs sufficient oxygen and is suitable for living in a slightly alkaline and low hardness water environment.

Second, the feeding requirements

Koi fish is an omnivorous fish, which can eat mollusks, fragments of higher aquatic plants, benthos, even tiny algae or synthetic granular bait. It is best to feed synthetic granules, bait, bean cake, vegetable cake, bread crumbs, fish worms, clams, crab meat, duckweed, duckweed and so on. Feed regularly to avoid stress reaction of fish.

Third, the choice of fish species.

Fish species with healthy fish body, no damage, no desquamation and other diseases, bright fish body, various colors and clear boundaries should be selected.

Fourth, the feeding density

The density of water cluster box is generally 60 cm× 30 cm× 15 cm, and 6 koi fish plants with body length 15 cm ~ 20 cm can be stocked. 8 can be stocked in 90 cm× 30 cm× 50 cm; 110cm× 30cm× 50cm can be stocked10 tail.

Key points of verb management (abbreviation of verb)

1. Check all parts of the fish.

Whether there are pests in koi fish, observe whether there are rotten fins, rotten mouths, perforations, loose scales, erythema and color variation.

Observe whether the fish is getting thinner, which is caused by malnutrition.

Observe whether the fish body is edema and whether the abdomen is drooping, which is caused by the fact that the female fish can't lay eggs and stay in the abdomen to rot. Fish will get pinecone disease when it is swollen, which is obviously caused by internal organs.

Observing whether the fish is bent is often caused by improper or excessive medication.

Observe whether the eyeball is normal. If it is abnormal, it is mostly caused by visceral diseases. Don't find it too late, there is no cure for eyeball collapse.

Observe whether the fish gills are open and closed normally. For dead fish and diseased carp, pull out the gill cover and observe whether there is deformation, foreign bodies, parasites and excessive mucus secretion.

Check your swimming style.

When koi fish is healthy, he will swim in all directions. When he is ill, koi fish will swim alone. When he is seriously ill, he will stumble and even have no strength to stop swimming and even hit the wall of the pool.

Koi fish forms a circle in the corner of the fish pond or rubs the wall or bottom of the pond with his body, indicating that parasites have been attached to the fish. In severe cases, koi fish rubs his body, slaps his dorsal fin and pectoral fin, or jumps. If koi fish swims standing on his dorsal fin, it is generally a sign of nervous system diseases. Koi fish's winding body is an abnormal signal of koi fish. Staying still on the water is a danger signal. Being unable to stand upright is a state of losing balance. There may be something wrong with the swim bladder, or there may be parasites on the head. When he is seriously ill, koi fish will swim around.

Check your appetite.

Koi fish lost his appetite when he was ill. Try to observe the situation when feeding until you finish eating. Be careful not to let the leftovers sink and rot, which will affect the water quality and accelerate the occurrence of fish diseases.

There are many reasons for anorexia, such as hypoxia, ammonia increase, water temperature change, parasitic infection, virus infection, visceral diseases and so on.

Check stool

The fecal status in koi fish is also a sign of koi fish's health. Sometimes fish feces will appear on the surface of the pool water, which is proof of indigestion and should be stopped immediately. Feces lighter than pool water are not good. When koi fish's feces are white and gelatinous, it is a dangerous signal that the intestinal mucosa is shedding. If not treated immediately, enteritis and perforation will occur.

Reference: Good Search Encyclopedia koi fish.