Sell [Local Ready Stock] Aquarium CO2 Indicator Drop Checker best price

Features: - Maintaining proper Carbon Dioxide (CO2) levels in the planted aquarium is one of the most important factors in the health of the planted aquarium ecosystem. - A CO2 drop checker is an essential tool for monitoring CO2 levels in the aquarium. The CO2 checker is a reservoir designed to contain an indicator solution and an airspace. - When the drop checker is submerged in the aquarium, the carbon dioxide will out-gas from the aquarium water into the airspace of the drop checker and will eventually be absorbed into the indicator solution. - The carbon dioxide gas will seek a point of equilibrium between the indicator solution and the aquarium water. - As equilibrium is achieved, the colour of the indicator solution inside of the drop checker will change based on the concentration of CO2 in the aquarium water. - Different colour of liquid represents different concentration of CO2. BLUE means that CO2's concentration is too low. GREEN means it is normal. YELLOW means that CO2's concentration is too high Specifications: - Material: Glass - Drop checker size: 4.5x4.5x2.5cm - Indicator solution: 15ml How to use： - Simply add couple drops of indicator solution into the checker, do not add any water. - Stick the checker on the edge of the aquarium. - Ensure water level cover the opening of the checker. - Observe colour changes after 1 hour of CO2 injection. - Change the indicator solution every 30 days. Please take note: - Glass products are beautiful but fragile, please use carefully.