Permanent test to determine the acidity/carbon dioxide content – Simple and reliable control of the water values. Permanent direct measurement of the pH value and C02 content in aquariums. – Permanent test to monitor fertilisers: Attach with suction cups to the aquariumpane. Compare with colour scale label. – Indication of pH value (6.4 – 7.8) and C02 content. – Online Laboratory: regular control for a healthy aquarium with conditions close to nature.
