Ace Aquatec's patented electric nets can be deployed as an extra defense against determined or deaf predators. Using an electric field we can create an uncomfortable sensation when the seal attempts to steal fish from the cage. Our intention is to retrain the seal to avoid associating net contact with a meal. The electric net represents the last line of defence to deter determined seals or seals that may be suffering natural hearing loss in a particular frequency range. Electric nets can be continuous or triggered by the seal sonar devices.