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Co2 test 15ML Characteristic: – Liquid for refilling the CO2 indicator. – Just add 15 drops of liquid to the glass indicator to assess the CO2 concentration level in the aquarium.
Buying safely: always view the animal in person before agreeing to buy, and be wary of any seller who pressures you to decide quickly or asks for a deposit before you have seen it. Read our full Buyer & Seller Safety guidance.
Blue – too little CO2, Green – optimal CO2 level 30mg / l (ppm) Yellow – too high CO2 concentration. We recommend using the AQUA NOVA indicator for the best results. – Fluid capacity 15ml