Bubble Magus Curve's are extremely efficient protein skimmers which are for use in the sump filters on marine and reef aquariums. The Curve range features precise outflow adjustment and the very quiet Rock SP pumps with needle-wheel impellers to deliver excellent performance at affordable prices. Available in 3 sizes, covering aquariums from 300 to 1500 litres. Needle-wheel protein skimmer, capability 500-700L, pump: ROCK SP1000 (8w), dimensions 185 x 180 x 470mm, operating water level: 9.5-11".