I have both checkers and on my last tank check I got
Hanna checker phosphate LR read - 0
Hanna checker phosphorus ULR read - 13 ppb (which converted to .04 ppm)
can someone explain what the difference is between the two and if the .04 is what I should be trying to keep or upping the phosphate number.
Looking to get my nitrates and phosphates where I need them. Nitrates where zero per Hanna checker and I have been dosing some ME coral nitrates to raise it some.
Hanna checker phosphate LR read - 0
Hanna checker phosphorus ULR read - 13 ppb (which converted to .04 ppm)
can someone explain what the difference is between the two and if the .04 is what I should be trying to keep or upping the phosphate number.
Looking to get my nitrates and phosphates where I need them. Nitrates where zero per Hanna checker and I have been dosing some ME coral nitrates to raise it some.