1, figure is correct: The head wants correct, fish back is straight, fish body can the balance of left and right, the shape of two cheek and mouth want correct, won't askew, such koi view and admire value ability is high. Koi will have the possibility of mutation in the process of growth. Don't choose those with crooked head and out-of-shape body.
2. There is no trauma on the epidermis: Koi may be bruised during transportation, and the wound is easily infected after bruising, which is not easy to treat. After the trauma is healed, it may also leave scars and reduce the ornamental value.
3. Pure color and luster: select koi with uniform color and luster. The pattern should be clear and the color should not be too chaotic.
4, lively and active: can swim regularly in the fish tank, have a strong appetite to eat, such fish constitution is relatively healthy. There is a phenomenon of lying in the tank. Fish that do not like to swim must not be chosen. There may be potential fish diseases.
fish tank for raising koi? 1. Strong: The fish tank is made of glass and acrylic. Generally speaking, the thickness of a fish tank over one meter should be 1 cm, so that it can withstand high water pressure.
2. Length: The length of the fish tank should be matched with the lamp tube, so as to achieve a good viewing effect.
3. Height: The height of the fish tank should be 50cm ~ 60cm, so that the space is sufficient and the koi can grow.
