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What fish are suitable for keeping with koi? Pay attention to these points when changing the water

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Changing the water is an important part of the daily management of koi, and it is also the key to successful koi keeping, hence the saying "to keep koi, first keep the water." When changing the water, pay attention to the following three points: 1. The method must be correct: when draining water with a siphon hose, hold the wall of the hose, because the suction is strong during draining...
Changing the water iskoian important part of daily management work, and it is also the key to successful koi keeping, hence the saying “to keep koi, first keep the water.”
When changing the water, pay attention to the following three points:
1. The method must be correct:
When draining water with a siphon hose, hold the wall of the hose, because the suction is strong during draining, and never let small koi be sucked onto the hose.
The stems and leaves of aquatic plants are tender and break easily, so avoid the aquatic plants when draining water. In addition, be careful not to suck in sand, dead aquatic plant leaves, and other objects, so as to avoid clogging the rubber hose.
When adding water, the action should be gentle, and the water should not hit the fish body, so as to avoid chilling or injuring the koi. The water should be added slowly along the wall of the tank.
2. Measures must be timely:
If the water quality becomes foul-smelling, turns black, or foam appears at the surface, a complete water change is needed.
In the 1 to 2 days after a complete water change, the koi have not yet fully adapted to the new environment, and generally show reduced appetite  . At this time, reduce the amount of bait, and they may even be fasted for 1 day. Otherwise, excess live fish food will cause the water quality to become foul and deteriorate, making the koi sick or causing death.
3. Pay attention to temperature differences:

When changing the water, be sure to use treated water, and the maximum temperature difference from the old water must not exceed 2℃ to 3℃. If the temperature difference is too large, young koi are very likely to become sick and die.

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