70 cm silver carp and bighead carp weigh 5 kg. Silver carp (Aristichthys nobilis) is also called silver carp, silver carp, Baotou fish, bighead carp, black silver carp (also called silver carp in some places) and male fish. It looks like a silver carp. Side flat. It is a freshwater fish. The head is large and wide, and the length is about 1/3 of the body length. The mouth is also very wide and slightly upturned. Low eye position. Silver carp and bighead carp filter algae, zooplankton and organic garbage. Silver carp and bighead carp are big fish, so 70 cm silver carp and bighead carp weigh 5 kg.