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“OPEN AIR” CALIBRATION PROCEDURE
and carbonate alkalinity with Reef Builder™ or Reef Carbonate™ (do not mix these directly with a kalkwasser solution)
corals and plants at all times
Ideal treatment for newly acquired fish
Hanna HI781 Nitrate LR checker sump “OPEN AIR” CALIBRATION PROCEDUREThe Hanna Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The Checker is both accurate and affordable. Specifications Range: 0. 0 to 5. 0 ppm (as NO3 ) 0. 0 to 50 ppm (calculated) using dilution Resolution: 0. 01
