Finally the Juwel Protein Skimmer 3.0 is here! This new internal protein skimmer has been specifically designed to fit all of High-Lite Juwel aquariums. Simply silicone the holding plate into the aquarium with the guide provided. The collection cup fits into a specially cut hole on the lid flap (on new models - older aquariums will require a new flap - available to order, please contact our websales) The discreet unit is easily hidden in the aquarium with a similar appearance to the Juwel filter box. For aquariums up to 400 litres.