Testing devices/kits approved for DSR users :

(rev. September 2022)

• Salinity: [EZ] D&D H2Ocean Refractometer, Calibrated at 33ppt with DSR reference
• Alk/KH: [EZ] Salifert KH
• Calcium: [EZ] Salifert Ca
• Magnesium: [EZ] Salifert Mg

• Potassium: Salifert Potassium*
• Strontium: in evaluation (not required when dosing (CaSr 1:50)
• Boron: Salifert Borium (very limited shelftime)
• Iodine: in evaluation (not required when dosing 0,003ppm/d)

• Phosphate: (PO4): [EZ]] Hanna HI-736, *Salifert PO4 (low range, use 20ml – 2022 version).
• Nitrate: [EZ] Salifert NO3*

Iron: testing not required. (do not try to make iron measurable, prevent overdosing)

Definitions:

• Essential kits

• Finetuning kits

       [EZ] = EZ line kits

       Green = preferred choice

       * marked = value for your money.

Redsea PO4 test is NOT recommended for values higher than 0,08ppm.

Always use the DSR Reference to validate your own testing kits.