If you want to clean up the excrement of koi, the first thing to rely on is filtration. If there is no filtration in the cylinder, or the power of the filtration equipment is relatively small, the cleaning effect will be worse. Replace with a more efficient filter, or check the condition of the filter to see if it is clogged and needs to be cleaned. In addition, it can also shorten the suction port, which can also increase its suction.
All kinds of fish should change water regularly, but we must pay attention to the way and method of changing water, usually from the bottom of the water tank to pump water, you can use the siphon method to pump water from the bottom, this can also take away the residual bait and fish at the bottom. The amount of water should not be too much, generally about a quarter. After pumping water, you need to slowly add new water from the bottom of the tank, do not change water violently, so as not to stimulate the fish.
Koi eat a lot, if not well controlled feeding, excrement will continue to increase, so in peacetime need to reduce the amount of feed. The feed can be artificially synthesized granules, bean cakes, vegetable cakes, bread crumbs, fish and shrimp meat, etc. Feeding should be done regularly and quantitatively, and it is enough to feed seven or eight points each time.
The establishment of a nitrification system does not directly help to reduce excrement, but too much excrement will lead to an increase in ammonia nitrogen in the water body, which will affect the appetite of fish, and even lead to their death. Nitrifying bacteria can convert ammonia nitrogen into nitrate in water, so it is very helpful to the health of Koi.
