Bass carp. According to the query Baidu encyclopedia information shows that the balsa fish is a freshwater fish, its thorns are relatively small and relatively small, and the location of the thorns are relatively concentrated in the central part of the fish body, it will be easier to remove the thorns of the balsa fish, while the blackfish is another common freshwater fish, thorns are more and more sharp, will be distributed in the fish body of the different parts of the balsa fish thorns, so the balsa fish.