ATC Portable Saltwater Refractometer Crabs/shrimp it also avoids that the

it also avoids that the ionic balance is disturbed when used in combination with our KH + pH Buffer or any other sodium based buffer

Concentration:

09 ppm Colorimetric 50 Potassium Pro K 3 ppm 150-450 ppm Titration 40 Iron Pro Fe 0

Red Firetail Goby

Red Sea’s  KH/ALKALINITY  is a complex of carbonate and other buffers present in seawater that maintain proper alkalinity and pH

ATC Portable Saltwater Refractometer Crabs/shrimp it also avoids that theFeatures: Used to measure the salinity and specific gravity of the water. Sturdy and light weighted Aluminum body. Superior quality rubber grip. High quality and accurate testing result. Can be easily calibrated with a mini screw driver. Automatic temperature compensation (ATC) Easy to use, convenient to carry. Specification: Size(approx): 195 x 40 x 40mm Package weight: 8. 4oz 237g Measure Range: 0 100%(0 10%) Accuracy: 0. 001sg(1%) Salinity