First of all, you need to have a powerful filtration system, such as bottom filter, upper filter, filter barrel, etc. You also need equipment such as thermostats and thermometers to control the water temperature to a temperature suitable for fish. For small fish, you can choose a medium-sized fish tank. If it is mixed culture, you need to understand the habits of the fish. The species should not be too mixed to prevent the fish from killing each other. The water in the fish tank also needs to be changed regularly.
Koi is an omnivore, so it needs to eat a lot. There are mainly the following categories: Koi fish can eat nutritionally proportioned fish food, as well as water mosquitoes, water spiders, snails, shrimps, small fish and other foods. The plants that koi fish can eat are mainly aquatic plants, such as duckweed or aquatic plant shoots. It should be noted that some owners will keep turtles and fish together, which is not a good situation. Some turtles will eat fish as food. The daily excretion of turtles is also relatively large, which can easily cause water pollution and is not good for the growth of fish.
