The differences between catfish and catfish mainly include the following aspects. Although catfish also includes catfish, if the two kinds of sounds are carefully compared, there are still great differences in shape and appearance. The main difference is that the first tail is different, and the tail of catfish is forked, just like the scissors tail of a swallow. But the catfish's tail is round and fan-shaped. The shape and size of the second head are different, and the fish head is not small and round. Catfish's head is relatively large and flat. The number of the third dorsal fin is different. The fish has two dorsal fins, and the catfish has one dorsal fin.