co2 readings - trust LaMotte testkit over pH/KH cross?
my pH/KH crosspoint on the co2 chart gives me 33ppm co2, but the LaMotte testkit gives me a 18ppm co2. In my 180g (with no co2 injection), the Lamotte testkit shows 25ppm co2.
I am using a pinpoint pH monitor to give me my pH reading.
Not sure what reading to trust. Average them maybe?
450g Planted Discus Tank - Work in Process!