Experienced aquarium enthusiasts regularly review their tank water. This allows for measures to be taken, for example against algae, quickly and easily, without the need to use chemicals.

The Sera test kit contains the following test sets:

• pH value
• Total hardness
• Carbonate hardness
• Ammonia/Ammonium
• Nitrite
• Nitrate
• Phosphate
• Iron and
• Copper or chlorine