How can koi fish raise beautiful ink lines?

1. Relationship between ink quality and water temperature: It is known that ink in koi fish is easy to appear when the water temperature is around 8 to 27 degrees, especially between 17 and 26 degrees. Especially for Showa tricolor ink, the water temperature will come out at 13-20 degrees, and it is most obvious at 15- 17 degrees. You can make the ink more beautiful at this temperature, but you must keep the water quality of your fish tank stable.

Second, the quality of ink is related to dissolved oxygen, pH value and trace elements in water: generally, in the process of koi fish culture, the more dissolved oxygen, the lowest concentration of nitric acid in neutral and slightly alkaline water, which is quite beneficial to the development of ink quality in koi fish. If you can change the water regularly and supplement the trace elements in the water, you will not have stress or allergic reaction to the fish. You can also put some sand filter materials to supplement the slowly soluble silicon, and control the water quality at a lower hardness level (below 8 dh), so that the ink in koi fish will be black and shiny. In fact, in our real life, koi fish raised in new cement pools or underground wells and surface mountain springs has better ink quality for koi fish.

Third, the relationship between feed and the quality of koi fish ink: Minimizing the feed containing fat can enhance the quality of ink.

Fourth, the relationship between sunshine and koi fish ink: Although koi fish needs sunshine, it doesn't need direct sunlight on the surface of fish. Minimizing direct sunlight in koi fish is also helpful to the development of ink in koi fish.