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Liquid supplement: 1ml will raise the Ca level of 100 liters (25 gal) by 2ppm
so if housed in a group they will do best with one male and multiple females
Recommended Tank Size: 250 gallons Marine / 500 gallons Freshwater
The thermostat control makes it simple and easy to adjust the temperature setting without getting your hands wet
Minimum Tank Size: 29 Gallon tank with sand for substrate
Hanna Instruments Saltwater Aquarium Calcium Colorimeter Day & Night Liquid supplement: 1ml will raiseAlways get accurate results for your saltwater aquarium with our handheld colorimeter. Our saltwater calcium colorimeter fills the gap between calcium test kits and advanced instrumentation. Standard test kits have limited accuracy as they depend on the human eye to determine colors. Our handheld colorimeter eliminates the trouble of matching to a color chart by providing a direct saltwater calcium result in ppm CaCO3. Our portable handheld