the fish excrement in the fish tank? The fish excrement in the fish tank can be cleaned up when the water is changed. Find a pipe, put one end to the bottom of the tank, the other end is placed lower than the fish tank, and then siphon the water from the bottom of the tank. At this time, the fish excrement will be cleaned out. After about a quarter of the water is pumped out, you can stop, and slowly add the trapped water from the tank wall into the fish tank, so as to avoid fluctuations in water quality.
1, black shell shrimp: There are many kinds of black shell shrimp, but without exception are raised as tool shrimp, they can eat algae at the bottom of the tank, can also eat fish excrement. The length of this kind of shrimp is generally about 2-3 centimeters, the body color is more changeable, like to stay in the area of dense aquatic plants, when the shell will be eaten by fish.
2. Tool snails: There are many kinds of snails, which can clean up the feces of fish. However, it should be noted that not all snails can be raised. If they are freshwater snails, once they breed, the harm to fish will be greater. So it's better to raise some soda snails, such as zebra snails, bee snails and black diamond snails.
3. Scavenger: Scavenger is a common tool fish. It will also eat all kinds of dirty things that sink at the bottom of the tank. It is native to South America, the body is semi-cylindrical, like weak acid soft water, the general water temperature should be kept above 20 degrees Celsius. It lives at the bottom of the water, has strong adaptability, and is also resistant to hypoxia.