Maintain Accurate CO₂ Levels with Ease

ISTA CO₂ Indicator Solution is a pre-mixed refill designed for use with CO₂ drop checkers. Simply inject 1ml of solution into the indicator—no need to mix with aquarium water. This ensures consistent and reliable color readings to help you maintain optimal CO₂ levels for healthy plant growth.

Compatible with ISTA’s All-Angle View CO₂ Indicator and other similar devices, this solution is spill-resistant and easy to replace. For best results, change the solution every month to keep your readings accurate and your aquascape thriving.

Key Features:

• Ready-to-use 10ml CO₂ indicator solution
• No mixing required—just inject and monitor
• Works with ISTA and other drop checker models
• Recommended monthly replacement
• Supports healthy plant growth in freshwater aquariums

Specifications:

• Model: ISTA CO₂ Indicator Solution
• Country of Manufacture: Taiwan

CO₂ indicator solution, drop checker refill, ISTA CO₂ liquid, planted tank CO₂ monitor, aquarium CO₂ accessory