Originally Posted by Joe5688
when did u check the Ph? Apparently if the lights are off and u test before they come on the Ph will be a little lower. Check after they have been on for a while.
Correct this is because the algae in the tank has by yet begun the photosynthesis , this will raise your Ph , it is best to check you Ph after you lights have been on for quite a while or even before you shut them off , some people that use a refuge under the tank will have opposite night/day cycles this will make the Ph in the tank more consistent even at night when the DT lights are off