Korallen Zucht Revolution L Skimmer - lead time 2-3 weeks for delivery from Germany The well thought conical design makes a fantastic, soft and creamy absorbate. The natural bubble formation of this skimmer reminds you of the foam formation at the sea. The very natural and gentle skimming adds the air with a spacious nozzle which is very effective but nevertheless gentle. Thus the water is not chopped like by a needle wheel, so there are no elements precipitated and plankton is saved. For tank sizes of 3000 – 7000 L (750-1750 Gallons). Pump is not in the delivery scope and should be ordered seperately. Optimum results for this skimmer with Aquabee UP 7000. Optimum water level for this skimmer: 25-35 cm hight. Size: 40 l x 40 b x 87 h cm (without pump). For internal and external use. Utility patent-protected applied for patent.