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Dymax · Supplementation
Dymax CO2 Drop Checker
The Dymax CO2 Drop Checker is an essential tool for monitoring dissolved CO2 levels in an aquarium; filled halfway with CO2 indicator solution and placed in the tank, it shows blue when CO2 is too low, green when concentration is good, and yellow when too high, reacting over 1-2 hours. More reliable than bubble counts alone, since too little CO2 promotes algae and poor plant growth while too much harms livestock. Available as drop checker only or as a kit with indicator solution, in Small and Large sizes; includes suction cup.
Price: $20.99 USD
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