Hanna checkers I have left, they have all good reagents except dkh. Most only used one time. Still have plastic on the screens
Nitrate HR
Nitrate LR
Phosphate LR
Phosphate ULR (2)
Dkh (2)
$35 plus shipping
Discount for multiples
Hey everyone. I just received my Hanna checker and honestly, I’ve confused myself on what phosphate level i should be shooting for. I keep reading that I need to be around .02. Today I tested with a .28 and started panicking. But I have no algae problems and my corals looks fine. If this level...