Drop Checker

[rsands]

Hi,
I just got my drop checker and i put 5ml of the 4dkh solution along with 3 drops of hagen low php test kit (its blue) it tests ph 6 o 7.6

i then put it up the right way then put it in the tank....6hours later and its still blue? co2 has been injected all day today


Thanks

 

[Dave Spencer]

It usually takes a couple of hours to change colour. That`s why you should always make sure you are around to observe the effects when you start increasing CO2. If it is still blue after six hours then your CO2 is low. Slowly increase your BPM this evening and possibly tomorrow until it turns green. I actually run my drop checker at the almost yellow point in my high light tank where CO2 demand is high.

Dave.