A miniature version of the popular Remora Hang-On Protein SkimmersUses half the power of the regular RemoraDesigned for tanks between 5-25 gallons. Small enough to fit a nano-reef, while still yielding strong and dependable performance Powered by a Maxi-Jet 900 pump16" tall and 2.75" thick The Aqua C Remora protein skimmers do not use venturis, downdraft tubes, or air pumps; they employ the patented "Spray Injection System." This innovation allows the Aqua C Remora protein skimmer to efficiently draw in much more air than any other of the top protein skimmers.