ARTICLES

Knowledge

21. May 2019

Manual- vs automated data collection

On many fish farms, several water quality parameters (including toxic free CO2) are only measured manually at fixed times or in selected tanks. The water quality is fluctuating daily and are often following rhythmic patterns. With this method, you will often miss the peaks and therefore create a misleading result of a satisfying, stable CO2-level. This white paper compares and analyzes two identical data sets presented in two different ways. Read more
16. April 2019

pH-management in a fish farm

pH affects the toxicity of substances in water. A typical pH-drop leads to a two- to threefold increase in the level of toxic free CO2, initiates the formation of H2S, and increases the toxicity of several metals, including copper (Cu2+). Conversely, an increase in pH-value will raise the concentration of unionized ammonia (NH3), which is also toxic to fish. Therefore, regulation of alkalinity and pH is an essential tool for controlling the toxicity of the water’s components. Read more