Reef Octopus Classic 152-S Protein SkimmerReef Octopus Classic 152 S The Reef Octopus Classic 152 S is an in sump protein skimmer capable of providing powerful filtration for aquariums up to 150 gallons where sump space may be limited. This Reef Octopus Classic Skimmer is constructed of high quality cast acrylic that disassembles completely for cleaning. Its unique Super Cone "wine glass shape" body naturally stabilizes and concentrates the organic rich foam as it rises producing an enhanced