Prominent Nordic salmon producer decreases mortality by 10% in RAS system

Substantial reduction of bacterial development thanks to Mellifiq ozone technology

Water quality and fish mortality have always been a challenge in RAS fish farms, and a concluded on-site evaluation at the largest fish farmer in Scandinavia showed over 10% mortality decrease on fingerling production.  

Thanks to the ozone treatment, the water is now clearer and the bacterial growth highly reduced – which leads to higher survival rates. Water treatment with ozone also brings another major advantage: less need for manual labor and chemical use. 


  • Name:

    RAS fish farm

  • Location:


  • Challenge:

    Recirculating Aquaculture System (RAS) disinfection

  • Market:

    Fish production

  • Project value (USD):



  • Mellifiq delivery:

    Ozonetech ICT-60 high performance ozone generator

  • Performance:

    10% mortality decrease and color removal

  • Capacity:

    20 m3/h

  • Solution dimensions, HxWxD (cm):