Good morning. I have been using Salifert for almost two years. Since day 1 my NO3 has been under 5ppm whole PO4 has been .05 to 0.
I just purchased Hanna NO3 HR and PO4 ULR. They show NO3 at 14-15ppm and PO4 is .25. These numbers aren’t even in the same ballpark. Everything looks fine and happy.
Which one do I believe or do I assume the real number is in the middle? Thanks.
I just purchased Hanna NO3 HR and PO4 ULR. They show NO3 at 14-15ppm and PO4 is .25. These numbers aren’t even in the same ballpark. Everything looks fine and happy.
Which one do I believe or do I assume the real number is in the middle? Thanks.