What does the CO2 indicator do when in water?
When CO2 dissolves in water a small portion of it, less than about 0.2% combines with the water to form Carbonic Acid. As more CO2 dissolves and combines with water, the more the pH will drop. pH is an upside-down measurement A pH rise from 6 to 7 indicates a tenfold decrease in the acid concentration.
How do you use Dymax CO2 indicator?
To use simply fill the drop checker half way with the Co2 Indicator Solution. Place suction cup on the drop checker and place in your planted tank. Wait 2 hours to read Co2 levels. When your co2 is off the drop checker solution will be a deep blue color.
How do you test CO2 in water?
Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.
How do you use co2 indicator in aquarium?
Invert your drop checker and fill the reservoir up half way with CO2 drop checker indicator solution. Using the suction cup, submerge the drop checker into your aquarium water and stick to the aquarium glass sides. Based on the concentration of your CO2 in your water, the colour of the solution will change.
How does a CO2 indicator work?
When CO2 is injected into the aquarium, the CO2 will out gas from the aquarium water into the airspace of the drop checker. As CO2 enters the air, it is absorbed into the indicator solution. The CO2 will outgas from the indicator solution to seek equilibrium with the airspace and the aquarium water.
How can you test if CO2 is present?
The most effective way to test for CO2 is to bubble the gas through “limewater”, a diluted solution of calcium hydroxide (slaked lime). When you bubble carbon dioxide through the solution, it forms a solid precipitate of calcium carbonate – chalk or limestone. Calcium carbonate is insoluble in water.