RASTECH Magazine

Showcase Systems
Blue Unit introduces all-in-one water quality system

April 8, 2021  By  Liza Mayer

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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