Koi as ornamental fish, many fish friends will maintain them in the living room and other places where the light is not strong, if the koi can not contact the sun for a long time, their body color will become pale. At this time, it is necessary to fix two to three days a week to put the fish tank in a well-lit place for illumination, each time the illumination time is guaranteed to be about five hours, it should be noted that the light intensity can not be too strong, astigmatism irradiation can be.
< H3 > 2. Add feedThe color of the koi is fixed. If you want to increase the brightness of the color, you need to use brightly colored feed. After eating brightly colored feed, koi can increase its color and luster through metabolism. Bright-colored component such as earthworms, red nematode, carrots, green vegetable leaves, dried shrimp and that like can be added into the feed fed to the brocade carp, and the brocade carp is fed once every day.
< H3 > 3. Improve the PH valueWhen the dissolved oxygen in the water is very high, the concentration of ammonia will be reduced, and the body color of the koi will be condensed on the surface of the body. When the dissolved oxygen decreases, the ammonia will rise, the PH value will decrease, and the red color of the carp will become shallow, so adjusting the PH value appropriately can make the carp more colorful. At this time, adjust the PH value of the water for the maintenance of Koi to between 7.0 and 7.2.
Feeding colorful feed can speed up the koi color, common colorful feed are earthworms, red nematodes, carrots, green vegetable leaves, shrimp.
