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The Dymax CO2 Indicator Solution monitors the CO2 levels in your aquarium and displays different colors to reflect the concentration. A blue color signals low CO2 levels, green shows an ideal CO2 balance, and yellow warns of elevated CO2 levels. Expect the solution to take about 1-2 hours to respond and shift colors accordingly.
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🇺🇸 Ship from USA · On Agora since 2026
$16.49