When beautifying or caring for your aquatic pet's habitat know that the plants in their underwater environment are beneficial to them. You can keep the CO2 levels regulated for optimum plant health with the AQUATEK CO2 Regulator Mini with Integrated COOL TOUCH Solenoid. It is your way of ensuring that the plants in the water are thriving as well as the pets. The device doesn't overheat. This mini regulator works with all water types and is brought to you by Aquatek.