Ista Co2 Indicator Solution Refill aquariums Provides a sharp colour change

Provides a sharp colour change to assist with detecting fluctuations in calcium concentration

Suitable for the life of the aquarium and does not need replacement

A yellow or faint yellow-green colour indicates the absence of free ammonia

including aquariums containing shrimp and other invertebrates

Ista Co2 Indicator Solution Refill aquariums Provides a sharp colour changeIsta Co2 Indicator Solution Refill Ista Co2 Indicator Solution Refill is a pre mixed refill solution for monitoring CO2 levels in planted aquariums. Made by ISTA, it is suited to aquarium keepers who use a CO2 indicator and want a straightforward, low maintenance way to keep tabs on carbon dioxide levels in their aquatic environment. Key Benefits Helps monitor aquarium CO2 levels easily and efficiently. Pre mixed formulation requires no mixing before