Fish, frozen or wet are ideally suited for top load packaging. often more than one are packed to a carton, which makes top loading a handy filling method. If the product is easy to move as a whole, such as fish in a tray, machine placement of a cardboard sleeve is also an option.
At our demo centre in Eerbeek we can demonstrate top loading, end loading and sleeving machines. Ask for our recommendations and we will be glad to prepare a packaging solution proposal.