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Monitor Tester | Drop Checker | Indicator | Co2 Ozone Equipments - Fish Tank Co2 Glass Drop - Aliexpress
![Why is my co2 drop checker constantly blue? I am using the JBL Permanent Co2 plus pH Aquatest. The instructions indicate that you add 35 drops of the provided tester liquid into Why is my co2 drop checker constantly blue? I am using the JBL Permanent Co2 plus pH Aquatest. The instructions indicate that you add 35 drops of the provided tester liquid into](https://i.redd.it/jcl1ljk11es61.jpg)
Why is my co2 drop checker constantly blue? I am using the JBL Permanent Co2 plus pH Aquatest. The instructions indicate that you add 35 drops of the provided tester liquid into
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Amazon.com : Glass Clip Nano CO2 Drop Checker with Solution for Aquarium Planted Tank CO2 System (Hang Drop Checker with Solution) : Pet Supplies
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