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and adjust the amount based on stocking level
air valves
Recommended calcium range: 412 to 450 ppm
Bubble-resistant design helps reduce microbubble reading errors
Ista CO2 Indicator Livestock and adjust the amount basedIsta CO2 Indicator Continuous Visual CO2 Monitoring from Any Angle The Ista CO2 Indicator provides a simple visual method for monitoring approximate carbon dioxide concentration in a freshwater planted aquarium. The indicator solution changes colour in response to the CO2 level and can be compared with the supplied reusable colour chart. Its adjustable all angle design can be rotated for convenient viewing while the enclosed airspace helps keep the
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