CO2 Indicator Solution Refill

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This is a refill for our CO2 Indicator Kit product

Shipping Info

Fast and cheap

Care Instructions

Be sure to keep both your main CO2 Glass Indicator free from algae, and be sure to not leave the bottle with the cap off for extended periods.

Fast and cheap

Perfect for heavily planted aquariums

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Over 100,000 happy aquariums

A refill solution only. Easily allows you to visually check your CO2 levels in your aquarium 24 hours a day 7 days a week.