Still a little fuzzy when it comes to the drop checker!?

Check out ourĀ blog article about how to properly use the drop checker, and learn the science behind it.

Most importantly, when using a drop checker in your aquarium, you should know what the color of the indicator solution means for the CO2 levels in your aquarium. Accurate color observations can be made approximately 2 hours after initial placement of the drop checker in your tank.

BLUE —> too little CO2 or low CO2 levels —> increase the rate of CO2

GREEN —> proper CO2 levels —> no action needed

YELLOW —> too much CO2 or high CO2 levels —> decrease the rate of CO2

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