RASTECH Magazine

Blue Unit introduces all-in-one water quality system

After 10 years of research and development, Blue Unit Solutions introduces its all-in-one solution for water quality surveillance. 

Blue Unit is designed to collect 13 vital water quality parameters from up to 12 locations in a RAS farm simultaneously.  The data is collected in a visualization system and compared with benchmark values from producers across the globe. 

Biologist David Owen began developing the first centralized monitoring system in 2010 with the hope of using his 25 years of RAS experience to equip fish farmers with crucial trust measurements that create the best conditions for growth.


“Blue Unit Solution gives an early warning showing where, when, and why there is a change happening in water quality, which thereby ensures optimal conditions to watch over critical parameters and optimize water quality on the best possible foundation,” says Owen. “In the long term, it means less waste of fish feed, reduced expenses, better animal welfare, and greater profit.” 

Blue Unit is operated with a subscription-based software that collects data and gives 24/7 insight into the farm’s status. 

Special designed censors measure the following water quality parameters: pH, O2, opaqueness, conductivity, redox, rH (redox less pH), salt contents, temperature, totally dissolved matter, available CO2, total CO2, H2S, non-carbonate alkalinity (surrogate of ammoniac)

About 2,700 datapoints are uploaded to the cloud daily and can be accessed though external units. A built-in alarm system also notifies users of critical levels. 


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1 Comment » for Blue Unit introduces all-in-one water quality system
  1. Steve Cole says:

    What is in the waste water being discharged back into the main water source? Ie lake, Bay, or any other body of water being used by residents. I’d like to know if X# of Ltrs are taken, what happens to that water during the process?
    When that water is discharged back into its source, how many Ltrs are returned? What chemicals are in it? What antibiotics are in it?
    How is this monitored and tested and how often and by who? Who are the regulating sources in Ontario?
    I will have more questions later. Please respond to these concerns first.
    Thank you. Steve Cole

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