Captain, crucian carp c30 is good. Crucian carp c30 is 25cm long and weighs 3g. It is gray and has good buoyancy. Captain's float c30 is a handmade reed float with light weight, high buoyancy and high sensitivity, which is sought after by many fishermen in the competitive fishing circle. Carassius auratus captain c30 has good buoyancy, light weight and high sensitivity, so Carassius auratus captain c30 is good.