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Keep your Seachem glass pH checker working at peak performance with this readytouse CO indicator solution refill. It's formulated specifically to replace the colour reagent inside your glass pH checker so you can continue monitoring your aquarium's pH and CO related changes with clear colour results.
Key Features
Readytouse CO indicator solution designed for glass pH checkers
Shows pH change through colour shifts from yellow to green to blue
Helps indicate relative CO levels and pH impact in planted aquariums
Easy refill for consistent longterm monitoring
Suitable for freshwater tanks with CO systems
Benefits
Restores your pH checker's ability to give clear visual readings
Helps maintain consistent pH/CO monitoring without frequent test kits
Readymixed for quick, messfree refilling
Supports healthier plant growth by helping you finetune CO dosing
Simple and safe for regular aquarium use
Reasons to Consider It
Ideal when the original indicator fluid has run low or faded
A musthave for planted aquarium CO systems
Helps your glass pH checker stay accurate longer
Saves time vs mixing your own indicator solution
Instructions for Use
Remove the glass pH checker from the aquarium.
Fill the small bulb with indicator solution (about 1520 drops).
Invert the checker slowly to avoid spillage.
Place it back in the tank away from direct diffuser output.
Watch the colour change to monitor pH/CO levels.
