which WPs should be measured?

For ambitious owners of a reef tank, I recommend to measure following parameters. (this means that you should own following test sets and are common in using them correctly)

Absolutely essential

  • Salinity
  • Temperature


  • Calcium
  • Alkalinity/Carbonate-hardness
  • Magnesium
  • Nitrate
  • Phosphates
  • pH
  • Strontium
  • Potassium
  • Iodine
  • Boron
  • Redox-Potencial
  • Iron content

in case of emergency

  • Amonium

In Case of using tap water

  • Silicate