ATI Elements Reference Supplement 1000 ml.

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ATI Elements Reference Supplement 1000 ml. The ATI Elements Reference contains the natural balance of elements and salinity in its solution to refer to when using at home test kits . ATI Elements Reference will also help calibrate hydrometers or refractometers. Salinity: 35 PSU Carbonate Hardness: 7.5 °dKH Magnesium: 1313 mg/l Calcium: 421 mg/l Potassium: 408 mg/l Strontium: 8.1 mg/l Show more