Rhinox Co2 Indicator Solution, 0.5 Ounce, Glass Drop Checker Replacement Solution for Aquarium, Keep CO2 Levels Consistent, Easy to use Regent, Keep Plants and Fish Healthy, 2 Pieces;

All aquarium experts know that the art of keeping a thriving tank requires a lot of balance and attention to details. One of the small but crucial details is making sure that the carbon dioxide level in the tank is balanced perfectly to make it comfortable for both plants and fish. The best way to do this is to test the CO2 levels with a drop checker solution.

Most avid aquarium keepers like yourself would already have the right tools and solutions that can measure CO2 levels. But did you know that it is important to make sure your CO2 indicator solution is changed regularly? Just like you would change the aquarium water each week, you should also make sure your indicator solution is fresh to ensure an accurate reading every time. Improper storage can cause the solution to change colour and produce a wrong reading. This is why our 10ml bottles are the best option.

This ready-to-use value-for-money pack contains 2 indicator solutions of 10 ml each. Once opened, one bottle is perfect to use for 3 months (the recommended time to keep your CO2 indicator solution before throwing it out). It is recommended that you purchase only 1 pack (2 bottles) and set an alarm for after 5 months to order in your next bottle set. Our solution works best with our Drop Checker Kit which you can buy separately. You will only need a few minutes to prepare and test the CO2 levels and an hour for the result, Simple and affordable!