Complete Drop Checker Kit for Planted Aquariums

• Regular size glass drop checker and suction cup.
• Drop checker test CO2 solution.
• Accurately monitor CO2 levels in your aquarium.
• Changes colour to reflect CO2 levels.
• Removes guesswork of how much CO2 is required.
• Easy to use and install.

Complete Nano Drop Checker Kit for Planted Aquariums

• Small size drop checker and suction cup, perfect for small or nano aquariums.
• Drop checker test CO2 solution.
• Accurately monitor CO2 levels in your aquarium.
• Changes colour to reflect CO2 levels.
• Removes guesswork of how much CO2 is required.
• Easy to use and install.

A drop checker is an essential part of dosing CO2 in your aquarium. Without one, you would be guessing at how much CO2 you should be dosing for your aquarium. A drop checker removes the guesswork.

The solution in the drop checker changes colour to indicate the level of CO2 in your aquarium water; blue indicates a lack of CO2, yellow indicates too much CO2, and green indicates the desired level of CO2. Depending on the colour of the drop checker you can adjust your CO2 dose until the desired level of CO2 is reached.

The drop checker should be used in conjunction with a bubble counter so that fine adjustments to CO2 dosing can be achieved. Always make small changes to CO2 dosing, particularly if increasing the dose.

The kit includes drop checker test solution, glass piece and suction cup. The solution comes in a 10ml dropper bottle for ease of use.

Empty existing indicator solution from drop checker.

Fill drop checker with aquarium water until the chamber is 2/3 full.

Add 2-3 drops of checker solution to the water in the drop checker.

Position the drop checker in the aquarium so it is visible, but such that CO2 bubbles from your diffuser do not easily enter the drop checker, which could result in inaccurate reading.

Wait at least 6 hours for colour to accurately reflect the CO2 levels in the aquarium.

Adjust CO2 dosing in accordance to drop checker colour:

If the colour of the solution is yellow it indicates too much CO2 is present - reduce your CO2 dosing.

If the colour of the solution is blue increase CO2 dose in small increments.

If the colour is a light green you have the correct CO2 dosing.

Leave drop checker in aquarium for constant CO2 monitoring.

Change drop checker solution at least once every 4 weeks.