Best AquaC Nano Remora Aquarium Protein Skimmer (Skimmer Only) -A miniature version of the popular Remora hang-on skimmer.Uses half the power of the regular Remora.The NANO is designed for tanks between 5-25gallons.This is the first skimmer that is small enough to fit a nano-reef,while still yielding strong and dependable performance.The NANO measures 16″tall and 2.75″thick.Installation is very simple,and the skimmer is very efficient.The skimmer makes a good bit of noise out of the box,but this is easily reduced by putting a folded paper towel or cloth in the top of the first chamber.The collection cup is large and easily removed and cleaned. This is one of best aquarium protein skimmers from AquaC.