- Dec 16, 2018
- Reaction score
PerfectWhat two point of calibration are people using? 4/7, 7/10, 4/10?
My thought was 7/10 since where the typical range falls for reef tanks.
Because im right aroynd 6.8 to 7 ph i tested all 3 points and didnt see a difference enough to worry about between testing at 3 points and testing at 2. Youd be fine to do 7 and 10 on a reef tank