Kaytee's CritterTrail Tank Topper lets you turn your 10 gallon aquarium tank (hey, sometimes fish just don't work out) into a perfect home for your pet hamster, gerbil or mouse. Just snap the Topper in place and your habitat's ready to go!
The Tank Topper fits virtually all standard 10 gallon aquariums. Compare your tank's measurements with the Tank Topper before buying to ensure a good fit. The Tank Topper can be expanded to include additional CritterTrail accessories (sold separately).