Is the subject asking "Which is more expensive, sea cucumber grouper or wild grouper?". ". The market price of sea cucumber grouper is $20 per kilogram. Wild grouper is $80 per kilogram, and grouper refers to all genera of fish in the grouper subfamily of the grouper family of the order Perciformes. Grouper belong to the order Spoke-finned fishes, which have fat bodies and large mouths, and are not suited for long, rapid swims. Grouper are quite large, up to a meter in length, and it is not surprising that they weigh more than a hundred kilograms; however, there are many species of grouper, and their size varies.