Koi is a mid-range ornamental fish that has become popular in the world today. It is known as "live gems in the water" and "arts that can swim." Because it does not require high water quality, it is miscellaneous, easy to breed, and has a mild nature, likes to swim in groups, is easy to raise, and has strong adaptability to water temperature. In addition to the water temperature and the abundance of food can affect the growth rate of the koi, the growth of female and male fish is also very different. Here's how to choose the juvenile koi fish.
Picking time The juveniles start picking when they grow to 3 cm, and they pick 3 to 4 times. Due to different breeds, the speed of growth, and the appearance of markings sooner or later, the selection time also varies. For example, the Showa tricolor Koi carp is selected 15 days after hatching, the gold system Koi is selected 50 days, and the Koi carp of the red-white system and the Taisho three-color system are selected in about 60 days.
The main point of selection is to remove the misshapen fish which are not bright in color. Then according to the growth pattern of the pattern and the quality of the quality of the selection of the scale, the red and white Koi red stripe color should be eliminated, the golden Koi head dull, the scales are not well enveloped, fish body spots, pectoral fin growth Bad to be eliminated.
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