Test Kits
Fluval CO2 Indicator Solution – 10 ml (0.34 fl oz)
$5.99
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Product details
Product details
Fluval CO2 Indicator Solution – 10 ml (0.34 fl oz) is the replacement indicator liquid for the Fluval CO2 Indicator Set (17551). Used with the CO2 indicator reservoir, it helps you monitor carbon dioxide levels in aquarium water so you can support healthy live plants and keep your CO2 setup dialed in. ([fluvalaquatics.com](https://fluvalaquatics.com/us/shop/product/co2-indicator-solution-for-co2-indicator-set?utm_source=openai))
Features:
- Replacement CO2 indicator liquid made for the Fluval CO2 Indicator Set (17551). ([fluvalaquatics.com](https://fluvalaquatics.com/us/shop/product/co2-indicator-solution-for-co2-indicator-set?utm_source=openai))
- Designed to be used inside the indicator reservoir to show a color change you can compare to the results chart. ([fluvalaquatics.com](https://fluvalaquatics.com/manuals/CO2_Indicator_Kit_ONLINE_IM_ENGLISH.pdf))
- Supports ongoing CO2 monitoring for planted aquariums. ([fluvalaquatics.com](https://fluvalaquatics.com/manuals/CO2_Indicator_Kit_ONLINE_IM_ENGLISH.pdf))
- Fluval recommends changing the CO2 indicator solution regularly to maintain reliable readings (recommended every 30 days for the set). ([fluvalaquatics.com](https://fluvalaquatics.com/manuals/CO2_Indicator_Kit_ONLINE_IM_ENGLISH.pdf))
Specifications:
- Product name (shop listing): Fluval CO2 Indicator Solution – 10 ml (0.34 fl oz)
- Type: CO2 indicator solution (replacement liquid)
- Volume: 10 ml (0.34 fl oz)
- Compatible with: Fluval CO2 Indicator Set (17551)
- Manufacturer guidance for replacement: Recommended to change the CO2 Indicator Solution every 30 days (set guidance).




