CO2 Checkers

With this gracefull BLAU Glass tube CO2 indicator you can easily monitor the CO2 content in a planted aquarium. Color of the added CO2 indicator fluid changes when CO2 is not within the desired parameters.

With this glass BLAU CO2 drop checker you can easily monitor the CO2 content in a planted aquarium. Color of the added CO2 indicator fluid changes when CO2 is not within the desired parameters.

With the BLAU CO2 liquid Indicator you can easily monitor the CO2 content in a planted aquarium. Used in combination with the CO2 Indicator or CO2 Drop Checker.

The long-term tests are made of high-quality crystal glass and are suitable for permanent and direct CO2 measurement in the aquarium. Available is Small/Medium/Large.

The CO2 diffuses out of the aquarium water into the test container and dissolves in the indicator liquid, Carbo Test Indicator. Content: 15 ml.

The level of CO2 in the aquarium can be read directly from the six-colour scale in milligrams per litre. This provides an absolutely simple and reliable means of setting the correct CO2 supply level.

With this test you can easily determine whether the aquarium contains enough CO2. Simply fill the aquarium water into the test tube, give it a quick shake and seconds later the color reaction will reveal the result.

CO2 is one of the most important nutrients for aquarium plants. With the Co2 continuous test of Sera, you can easily and quickly determine the CO2 content of your aquarium water.