how to ensure correct measurement of water parameters?

How can i improve my water parameters?

setting up a new tank. What is most important?

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

Important

• Calcium
• Alkalinity/Carbonate-hardness
• Magnesium
• Nitrate
• Phosphates
• pH

Not as important/not recommended

• Strontium
• Potassium
• Iodine
• Boron
• Redox-Potencial
• Iron content

in case of emergency

• Amonium

In Case of using tap water

• Silicate