The Tank-Divider allows aquarium owners to instantly convert there aquarium from one into two. The Divider provides a split area for breeding and baby fish while giving more aggressive fish their own area. The Tank divider allows unrestricted filtration and heater circulation throughout the aquarium and can be trimmed for a custom fit if necessary. The Tank-Divider is designed to fit 10 gallon tanks and measures 11 3/8in x 9 5/8in br/>Sold in Quantity of: 1