100% Brand New and High Quality Features: High quality of the fabric material. Use with CO2 indicator. Easy to use and comfortable, to detect the concentration of CO2. Suitable for all types of aquarium. Different colour of the liquid is different concentration of carbon dioxide. Blue means that the CO2 concentration is too low. Green means that it is normal. Yellow means that the concentration of CO2 too high so as to fish from being damaged. A wonderful solution to keep fish feeding and their condition. 1 pc of the solution only, other accessories Demo shown in the picture are not included Specification: Type: Liquid Color: As the shown pictures Size: One Size Fits All Height: 7.7 cm (3.03in) Net Weight: 15 ml Quantity: 1 item Please note: 1. please allow 1 – 3 cm error due to manual measurement. Please take care to ensure you do not mind before you bid. 2. due to the Unterschieds between monitors, the image not actual colour may vary of the can. Thank you.) Package includes (no small package): 1 x CO2 indicator solution
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