The "best" is probably the Hanna 736 checker, but even that is not especially accurate when you are focused on very low levels. People try to overly interpret the readings, IMO.
I also like the Hach PO-19 kit, which I have checked for accuracy, but it doesn't read as low of levels as the Hanna.
Okay I see there is a “phosphate” and a lower “phosphorus” Hanna meter. BRS only has the phosphate meter would this be okay or should I get the lower phosphorus meter?
sorry to hijack but what is the difference in phophate meter and phosphorus meter? dont we need to measure phosphate in a reef? and if u were to get a phosphorus meter how does that help in knowing phospahtes in ur water?
sorry to hijack but what is the difference in phophate meter and phosphorus meter? dont we need to measure phosphate in a reef? and if u were to get a phosphorus meter how does that help in knowing phospahtes in ur water?
There is no actual difference in what they detect, which in both cases is only inorganic phosphate. Hanna just uses it as a marketing thing, probably to make the 736 look like it can detect a lot lower levels than the 713 (it does, but only a little) and kits others sell.
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