Tubenet™ is a safe and functional technical solution, reducing attachement of sea lice and preventing escape. The solution is invented and patented by Egersund Net and has since been thoroughly tested by multiple parties, including The Institute of Marine Research in Norway.

A smaller buoyant pen is installed and moored inside the main pen. Attached to the inner pen, a tube made of tarpaulin is extended down to a specified depth. A roof of netting is extracted from the baseline of the tube horizontally to the wall of the outer net. The Tubenet concept may be integrated in new as well as existing installations.