ANS - Opti Glass CO2 Checker Set ESV Helps create ideal water conditions

Helps create ideal water conditions to promote breeding and coloration

Upgrade of popular high performance canister filter boasts enhanced performance and setup ease

Citric acid

If signs of stress occur

Where in my filter should I place the product

ANS - Opti Glass CO2 Checker Set ESV Helps create ideal water conditionsANS Drop Checker measure accurately the amount of CO2 in the water. Opti glass material used enhances elegant visual effect to your planted aquarium. As all planted aquarium are different, the amount of CO2 intake by plants are different. To measure accurately if the amount of CO2 is enough, we use CO2 monitor device. CO2 monitor device accurately measure the amount of CO2 dissolved in the water.