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01 ppm of PO4
(30cm) Width 7in
And the first time you pick up an AquaBlade you’ll notice the difference it makes
Day 1: Add 4 drops per gallon
Hanna HC - HI772 - Marine Alkalinity Checker (dKH)® Zoas 01 ppm of PO4The Hanna Marine Alkalinity (dKH) Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. This level of
