These cages are similar in design to the Tempest Squares, incorporating pressurised flexible rubber hoses with the option of rigid steel walkways at both ends of each side. The most popular cage has 16 metre sides giving a surface area of 660 square metres. With a 10 metre deep net the enclosed volume is approximately 6,600 m3 giving a production capacity of around 100 tonnes.

The Tempest Hexagonal can be moored independently or in a grid system. The hexagonal cage can also be incorporated with squares to give the farmer maximum flexibility in production planning. To maintain net shape and hence volume up to 1.5 tonnes can be suspended from the collar.

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