Bioscape Co2 Reagent-A 200 Grams is a high-quality reagent for use in laboratories, ideal for controlling and monitoring the levels of dissolved CO2 in aquariums, hydroponics systems, and other water-based systems. This reagent is non-toxic and highly precise, providing reliable and accurate results for CO2 levels in any water system. The reagent also includes a small scoop for easy measuring. This reagent is suitable for use in both freshwater and saltwater systems.