Ista CO2 Indicator Livestock or sharp-nosed puffers

or sharp-nosed puffers

however like all corals sudden changes in light intensity should be avoided

Recommended calcium range: 412 to 450 ppm

air valves

Ista CO2 Indicator Livestock or sharp-nosed puffersIsta 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