aquamaxx hob-1.5 hang-on-back protein skimmer aquamaxx the new aquamaxx hob-1.5 is an upgraded and more-powerful version of aquamaxx`s best-selling hob-1. with an enlarged bubble diffusor and reaction chamber, the new hob-1.5 is able to fully harness the power of the shark 1.0 pump to maximize foam production and protein extraction. the custom conical bubble diffusors help minimize the turbulence inside the reaction chamber and help to direct water linearly up toward the collection cup. more waste than ever is pulled out of your aquarium and into the easy-to-remove collection cup. aquamaxx skimmers are computer-precision engineered and utilize the latest filtration technology to deliver the performance and value you are looking for in a protein skimmer. ease of use aquamaxx hob-1.5 protein skimmers is easy to setup and maintain. just move the collection cup up or down to adjust the foam level to wet or dry. maintenance is simple. a removable collection cup makes cleaning easy. plus, every aquamaxx protein skimmer includes a drain fitting for hobbyists who want to setup a separate reservoir for skimmate. water quality and consistency is crucial to the success of a marine aquarium. an aquamaxx hob series i protein skimmer will help to ensure that success. compact design aquamaxx protein skimmers were designed from the ground up with the hobbyist in mind. aquamaxx hob series i protein skimmers have the pump placed inside the skimmer itself to save space, reduce noise and improve efficiency. each unit is precision-cut and made of polished cell-cast acrylic. performance aquamaxx hob-1.5 skimmers feature high-quality italian-made sicce pumps. each sicce pump motor block is then modified and fitted with proprietary aquamaxx needle wheel impellers. with the precise modifications and upgrades, performance is boosted much beyond that of a stock pump. the upgraded aquamaxx ‘shark’ pump is capable of drawing in significantly more air and chops them up to the optimum bubble