Introducing the little brother to Tunze's acclaimed Osmolator, one of the hobby's most trusted automatic water top-off devices. Designed specifically for smaller aquariums, roughly 50 gallons and under, the Osmolator Nano 3152 is a slimmed down version of the full sized 3155. It includes a processor-based anti-overfill system that turns the pump off after 5 minutes of filling if the level has still not been reached. The Tunze Osmolator Nano comes with the control unit, low voltage (6V) pump, power adapter and magnet mount. It’s a ready to use out-of-the-box top off solution for smaller aquariums. It's in stock today for only $104.66. Huzzah!

Tunze Osmolator nano 3152