New! Reef Octopus Prime Protein Skimmers The new and innovative Reef Octopus Prime series in-sump protein skimmer supplies powerful filtration. The Reef Octopus Prime Series is constructed of high-quality cast acrylic and PVC that disassembles completely for cleaning. Its unique wine glass body naturally stabilizes and concentrates the organic rich foam as it rises. Equipped with a custom modified Aquatrance pinwheel pump with rare earth magnet pinwheel impeller, it produces a perfect mix of water and air for optimum waste removal. This skimmer features a unique “twist and lift” collection cup to make removal and cleaning a simple task, an easy to use vented wedge valve provides precise control, and an underwater outflow for quiet operation.