Usually, fish feces in a fish tank do not need to be treated. The heterotrophic bacteria in the tank will decompose them. The ammonia nitrogen produced after decomposition will be absorbed by nitrifying bacteria, thus being converted into nitrate, which is the nutrient of aquatic plants. But all this happens if the nitration system in the tank is established, otherwise other cleaning methods are needed.
Generally, a filter needs to be installed in the fish tank. The filter can remove the dirt in the water very well. As long as the water flow in the tank reaches the standard, fish feces and residual bait will be sucked away by the suction port of the filter. However, the powerful filter is not omnipotent, if the water circulation in addition to the problem, such as overflow, the movement of fish feces is floating.
If the filtering capacity in the tank is not strong, it is necessary to manually clean up the fish feces, which is usually carried out when changing the water. With a pipe to the bottom of the cylinder, with the siphon method will be the bottom of the cylinder is out, so you can take away some of the dirt, and then from the cylinder wall into the new water on it. It should be noted that water can not be changed too frequently, and the amount of water can not be too large.
Raise a scavenger is actually not the best choice to deal with fish feces. Although it does eat, it also excretes, so it will also pollute the water quality. In addition to this kind of fish, we can also consider rat fish, Luo's shrimp and so on, these aquatic animals will eat fish excrement, but their excrement also needs to be cleaned up.
