1, sweeper:
The street sweeper is a veritable trash fish with a mouth as big as a sucker and likes to eat junk food under the water. The street sweeper generally likes to eat algae such as moss, and the street sweeper is very ugly and never attacks other fish.
2, Egypt pond waves:
Egyptian pond wave, also known as leather beard catfish, is black all over, and it is widely distributed in southern China. It does not require high water quality, but fish is hard to eat.
3, pike:
Dog fish is rare in life, with a slender body, a flat mouth like a duckbill, and extremely quick and agile movements. This kind of fish has a poor taste.
4. Silver carp:
Silver carp is common in ponds in China, because fish is easy to deteriorate and stink for a short time, and few people are willing to eat it.
5, bamboo shell fish:
Bamboo shell fish likes to grow in ponds with clear water quality, and its meat tastes bad. It feels very hard when eaten, let alone its taste, so few people eat it.
Scavenger:
The scientific name of the leopard-print catfish is an invasive species. It is the common name of Pterygoplichthys multiradiatus and Hypostomus plecostomus, which are commonly known in some areas as the strong waist dragon, strong waist fish, waist treasure fish, etc., also known as pipa rat and trash fish.
The scavenger plays a role in purifying water quality because it likes to eat the residual bait and dirt of aquarium, so it is named, also known as sucker fish and sucking catfish, and its scientific name is Silurus asotus, which is native to rivers in South America and can often be seen in Central America. The fish body is semi-cylindrical, the tail fin is shallow fork-shaped, and it likes weak acidic soft water. The suitable water temperature is above 2 0℃, and the adult fish body length reaches 3 0 cm.
Can't overwinter naturally, and moves at the bottom of water. At first, it was welcomed by consumers and farmers because of its strong adaptability, easy feeding, omnivorousness, tolerance to hypoxia and high catching rate. However, this fish has no natural enemies in China, because its skin is very hard, its meat is very rough, it is not delicious, and it is extremely easy to survive, and it breeds in large numbers, occupying the living space of local fish. Experts call for strict control of artificial introduction and dissemination to prevent it from spreading to natural water systems, and not to release it at will.