Pelteobagrus fulvidraco (pinyin: huáng sǎng yú ú, scientific name: Pelteobagrus fulvidraco), also known as yellow, yellow elephant head, Anggong fish, etc. , is a freshwater fish belonging to Pelteobagrus fulvidraco. The length of Pelteobagrus fulvidraco is 123~ 143 mm, and the weight is about 40~ 100 g. Its body is slender and slightly stout, its snout inclines upward to the dorsal fin, its rear side is flat, its head is slightly larger and vertically flat, most of its head and back are exposed, and its eyes are medium-sized, widely spaced and slightly convex. The back of Pelteobagrus fulvidraco is dark brown and gradually turns pale yellow towards the abdomen. There is a narrow yellow longitudinal band above and below the lateral line, and there is also a yellow horizontal band above the ventral fin and gluteal fin, which crisscross to form intermittent dark longitudinal bands. There is a dark longitudinal stripe between the two leaves of the caudal fin. The dark yellow Pelteobagrus fulvidraco has a slight poison on its head.
Scavenger is the general name of multi-winged grouper and multi-ribbed grouper, belonging to Silurus.
Because the scavenger likes to eat the bait and dirt left in the aquarium, it plays a role in purifying the water quality, so it is named, also known as sucking 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 and forked, and it likes weak acid and soft water. The suitable water temperature is above 20℃. Adult fish can't overwinter naturally and move at the bottom of water. It has the characteristics of strong adaptability, easy feeding, omnivorousness, hypoxia tolerance and high capture rate, and is welcomed by consumers and farmers.