Fluval CO2 Indicator Set

The CO2 Indicator Set performs the simple and important task of monitoring carbon dioxide levels in aquarium water to help you keep healthy live plants.

• Visibly changes colors to indicate low, ideal or high CO2 levels
• Solution lasts up to 30 days – replace monthly to maintain accurate performance
• Conveniently mounts to glass aquarium walls

What’s Included?

Glass Reservoir

Suction Cup

Indicator Solution