Here’s an energy-efficient compact terrarium filter which also provides water circulation in aqua-terrariums. The filter is fully submersible and can be installed either vertically or horizontally. Due to its small size, the filter is easy to hide in natural aquatic terrarium set-ups. The maximum flow rate of the Repti Clear 150 is 150 liters per hour and is adjustable. Dimensions: 1.8 x 3 x 6.5 inches.