It is normal to have fish feces at the bottom of the fish tank. The best way to clean them is to strengthen the filtration. Filtration creates a stream of water in the fish tank that carries the dirt to the filtration device to prevent it from contaminating the water. If the fish shit is too big, you can add a wave machine to break it.
If there is no filtration in the fish tank, or the power of filtration is not enough, there is also a way to clean up the fish shit, that is, to clean it up when changing the water. Prepare a pipe, put it to the bottom, siphon the bottom of the water out, so that the bottom of the fish excrement will be discharged together, and then add new water to the tank.
In natural waters, fish feces will be decomposed by microorganisms, and although fish tanks can also use them to decompose fish feces, the ammonia nitrogen produced will cause certain toxicity to fish, so nitrifying bacteria are needed to convert it. Generally, when the tank is opened, nitrifying bacteria need to be added regularly, and the light should be turned off to explode oxygen, after the nitrification system is established, fish feces are cleaned up by organisms, and there will be no threat to fish.
The first three methods are to clean up the fish feces. In fact, if you want to avoid having too much fish feces in the fish tank, the best way is to start from the source and reduce the amount of feeding to the fish, so that the fish feces will naturally be less. Every time you feed the fish, you can feed them to seven or eight points full, and you also need to avoid residual bait in the fish tank.
