Monthly Archives: February 2010

New Cal Aqua Labs Double Drop Checker

Cal Aqua Labs’ “Double Check” drop checker is the only all-glass dual-compartment CO2 checker that allows the user to accurately compare the CO2 level in your aquarium side-by-side against a standard reference. The top chamber holds the CO2 indicator solution, whereas the bottom chamber carries a CO2 reference solution. The reference solution color corresponds to 30 ppm of CO2 –…