Often adsorbed on the aquarium wall or aquatic plants, licking moss, it is the best cleaner in the aquarium. The scavenger takes fish excrement, seaweed, bacteria and feed residue as its main food, which has become the origin of its name. Like a vacuum cleaner, the mouth of the sweeper sucked all the fish droppings and green plants into the stomach.
It also has a bubble in its mouth, and this bubble contains oxygen, which can make it stay in the water for a long time and allow it to eat more "food". As an alien species, there are no natural enemies in China at present, and it is easy to breed in large quantities in rivers, which will threaten the survival of local fish and destroy the ecological chain. The whole body is gray-black, with black and white patterns divided into yellow maps and black maps.
2. In the old days, it was called a street cleaner. Xiao Hong? The first chapter of Ma Bole: "The street sweeper doesn't seem to sweep the street these two days, and leaves are accumulated on the sidewalk." Ai Qing? "Notice of Dawn" poem: "Please ask the street sweeper to clean the street, and please ask the truck to move the garbage."
3. Sweeper (English name: Sweeper) is a kind of defender in football. The early sweeper refers to a delayed defender between the goalkeeper and the defense line, who is responsible for resolving the attack that has penetrated the defense line. It can also be understood as "the player who does not undertake the man-to-man defense task".
Extended data:
The form of the scavenger:
The whole body is gray-black, with black and white patterns, the body surface is rough with shield scales, the head is flat, the dorsal fin is towering, the tail is flat, the kiss is round and blunt, the mouth is lower, there are plenty of suction cups, and the whiskers are 1 pair. The chest and abdomen spines can support the body and crawl on land. The fish body is semi-cylindrical, with wide side and shallow fork-shaped caudal fin.
Lower mouth. The dorsal thread is wide, the abdomen is flat, and the left and right ventral fins are connected to form a circular fan-shaped sucker. Seen from the belly, it looks like a small pipa, so it is also called anglerfish (pipa mouse). The fish is dark brown and covered with black spots. The body length can reach 250 mm. Will turn white.
The habit of the sweeper:
Origin: Brazil, Venezuela.
Feeding habits: omnivorous, mainly feeding on organic debris in the wild, and adult scavengers raised artificially mainly eat fish food, which may devour fish eggs at the bottom of the fish tank.
Baidu Encyclopedia-scavenger fish