CO2 indicator

[Jaffar]

The instruction to use the AZOO CO2 indicator appears on the box. Unfortunately, I threw them away. Can anyone who have used this indicator let me know the dosage of water and azoo solution to use. I have the colour chart. Thanks

[Wahlin]

The instruction to use the AZOO CO2 indicator appears on the box. Unfortunately, I threw them away. Can anyone who have used this indicator let me know the dosage of water and azoo solution to use. I have the colour chart. Thanks

You can't mix your tank water with your azoo solution (which is a PH test agent, I guess). You need KH4 solution/water to be filled in your CO2 checker, then mix your azoo solution until it turns blue. This may not be the best way but it works for me.

[herns]

You can't mix your tank water with your azoo solution

The Co2 drop checker sold in Ebay by Aquatic Magic which is base in Singapore, writes in the instruction to use 3-4 drops of regent and mix with tank water up to half of the round glass bell.