The new juwel skimmer 30 means that it is now easier than ever to convert the juwel range of aquariums for marine use r r r r the unit is designed to sit in the back corner at the opposite end to the juwel filter system and the collection cup sits above the tank newer juwel aquariums have a pop out portion in the rear flap to accomodate thisr r r r the skimmer uses a 1500 lph pump and has a low power consumption of just 20 wattsr r r r dimensionsr r overall height 544mmr r height without