CO2 systems

Irrespective of the time of year, the water level and the lighting conditions, tropical waters, especially flowing waters, are surprisingly stable. Factors such as pH value, the CO2 fluctuate only insignificantly. A protected water stability in the aquarium is ensured by using the Dupla CO2 System:
1. constant pH value
In the ideal mixed aquarium with ornamental fi sh from geographically and chemically different waters, it is advisable to choose a neutral setting of pH 7. Even in special aquaria where particular species of fish such as discus fish are kept or bred, the CO2 the precise CO2 dosage, both acidic and alcaline pH ranges can be programmed and kept stable.
2. stable carbonate hardness
In an aquarium suffering from a lack of CO2 the plants use up carbon. During this process, known as biogenous decalcification, the carbonate hardness is reduced to dangerously low levels and the pH value becomes highly unstable. A suffi cient level of CO2 prevents a biogenous decalcification and ensures the stability of the water.
3. optimal supply of CO2 for aquarium plantsSubmersed water plants usually meet their carbon need by way of the gaseous carbon dioxide dissolved in the water. The Dupla CO2 fertilizer ensures an optimal supply of carbon.