Family to raise cold water fish to raise koi.

Koi are gentle, like to swim in groups, easy to feed, adaptable to the water temperature. Can live in 5-30 ℃ water temperature environment, the growth of water temperature of 21-27 ℃. Koi and goldfish, like the water temperature, water quality requirements are not strict, the temperature range of 2 ℃ -30 ℃, but can not resist sudden changes in water temperature, the temperature difference suddenly more than 2 ℃ -3 ℃ Koi will be uncomfortable, the optimal water temperature of 20 ℃ -25 ℃; the need for sufficient oxygen, suitable for living in a slightly alkaline, hardness of the water environment.

Koi is an omnivorous fish, general mollusks, higher aquatic plant fragments, benthic animals and even small algae or synthetic granular bait can be eaten. **Feeding synthetic pellets, bait, bean cakes, vegetable cakes, bread crumbs, fish worms, clams, crab meat, turnip, duckweed, etc. can be. **Feed bait regularly.

Common carp are very adaptable fish and koi retain this trait. They can be kept anywhere from small aquariums to large outdoor ponds, and they quickly grow to 30 centimeters long or larger, so using a traditional indoor aquarium is not as good as a round plastic tub.

Koi are cold-water fish, so keep them in water half a meter or more deep** in areas with hotter summers. Fish pond density general stocking can refer to the fish pond stocking koi density table; aquarium density general 60 cm × 30 cm × 15 cm can be stocked body length of 15 cm -20 cm of koi 6; 90 cm × 30 cm × 50 cm can be stocked 8; cm × 30 cm × 50 cm can be stocked 10. 60 aquarium stocking what cold-water fish beautiful.

Koi are managed differently as the seasonal temperature changes.

1, spring, the weather at first warm, koi from hibernation began to recover, feeding from the indoor transfer to the outdoors, but pay special attention to the sudden cooling, to cover the film in time to maintain a stable water temperature; bait to plant-based bait, the amount of input from the less gradually increased, in order to facilitate the digestion of koi absorption.

2, summer, the weather is hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot. Cold water small aquarium what small fish.

What are the most **most** cold water fish to keep in an aquarium?

3, fall, the weather is less rain and more sunny, the water temperature has dropped significantly, the most suitable for koi growth, can increase the proportion of animal (protein), such as silkworm pupae. Increase the amount of input to promote fast growth.

4, winter, the weather is relatively cold, when the temperature drops to 0 ℃, the koi will be transferred to the indoor pond wintering, indoor water temperature should be maintained at 2 ℃ -10 ℃, pay attention to the focus is heat preservation, appropriate baiting, fat prevention and prevention of disease, the period of November to the following year in March for the koi wintering period.