Many aquatic animals will eat fish feces, such as scavengers, black shell shrimp and some snails. It should be noted that these animals can eat and excrete, so it is unrealistic to expect them to clean up the feces in the tank, or rely on microorganisms in the water to decompose the feces. The decomposed feces will produce ammonia nitrogen harmful to fish, which must be transformed by nitrifying bacteria.
1. Scavenger: Scavenger is the most common cleaning fish. This kind of fish lives in the bottom of the water body, and the mouth of the fish is also below, so it is convenient for it to suck away the residual bait and dirt at the bottom of the water, which can slow down the deterioration rate of the water body, and has a certain effect on the maintenance of water quality, but this kind of fish has certain requirements on temperature.
2. Golden moss: Although it is not helpful to clean up the residual bait, it can suck the moss on the wall of the tank to prevent the outbreak of algae. Moreover, this kind of fish has a mild temperament, can be mixed with many small fish, has a wide range of temperature adaptation, and can survive in the water body of 15-30 C.
3, Black Mary: Black Mary is also a good clean fish, it can eat algae and water plants, and the water quality requirements are not high, relatively easy to raise. It prefers slightly alkaline, hard water, so cannot be mixed with lipidaceous tropical fish.
