The Peltech Geotronic chiller is a thermoelectric cooling device which uses one of the most efficient mechanisms for removing heat from an aquarium. The product was introduced several years ago but the device fell out of favor because of some problems with faulty power supplies and a corrosion-prone finish. It’s been a few years since this piece of temperature management equipment was in vogue but now the Peltech Geotronic chiller is back in the game with some upgraded design elements. The power supply has been beefed up and redesigned to increase longevity and the exterior housing is now finished with a powder coated layer. The new and improved Peltech Geotronic is now available from AquariumSpecialty.com.