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We have extensive experience with land-based facilities and can help establish your fish farm



Morefish can help your company get approved for various certifications


Poor water quality leads to reduced fish welfare and reduced quality of the fish. We can help with trouble shooting if you experience periods of bad water quality in your facility.



We perform technical and biological operational optimization of facilities. 


Improved water quality control by measuring particle size distribution (PSD) in RAS




Our team has extensive experience in the design and engineering of land-based fish farm facilities. We contribute to various processes by assisting with technical solutions and ensuring details in the design and execution phase.


Morefish has experience from the management and operation of fish farms;

  • Flow through systems, both sea water and freshwater

  • RAS, both sea water and freshwater

  • Establishing and engineering new land-based fish farms.

  • Re-design of older facilities.

  • Heat exchangers, pump stations, filter solutions. 

  • Different species; Salmon, halibut, cod, cleaner fish, and char. 

Contact: Andrè Spigseth at




Reducing the risk of incorrect dimensioning, technical deviations and time-consuming and costly complaints, is very important throughout a project. 

With Morefish on the team, you can avoid typical pitfalls by, among other things, avoiding misunderstandings between customer and supplier, ensuring that the contract is followed and creating understanding between the parties.


  • We increase the focus on correct specifications and ordering.

  • Major challenges with different expectations between customer and supplier

  • Many pitfalls in terms of equipment and quality

  • Secure warranties

  • Avoid costly deviations in case of delays


This offer applies to both customer and supplier.


Contact André at




Global GAP and ASC:

In Global GAP and ASC certification, we actively contribute throughout the process. We conduct pre-audits and self-inspection, and develop and adapt the company's quality systems.


We can follow the process until the audit of an external certification company, and we will contribute afterwards to ensure that the certification is in place.

Contact: Marita at





Poor water quality contributes to reduced fish welfare and reduced fish quality. This results in poor productivity. Good fish welfare provides good production economy.  

We work with technology that provides better knowledge of water quality in facilities and a better understanding of the processes. This helps reduce the potential for harmful events.

We can help to:

  • Improve biosafety in the RAS plant (disinfection, particle removal, pH adjustment, CO2 management) 

  • Calculate the plant's production potential 

  • Block out bottlenecks 

  • Improve the quality of the fish 

  • Adapt technology to biology





Operating land-based fish farms can be challenging. We have experience with various issues related to operations, both biological and technological.  


Examples of what we can help you with:

  • Water quality management

  • Disease prevention

  • Handling of production deviations

  • Better smolt quality

  • Technical support

  • Training

An important part of operational support is the design of a good quality system. Good routines and common understanding help to achieve good and stable production results.


Morefish can contribute to skills development in fish welfare, organizational development and management.  

Contact Marita at


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In physical water quality assessment, TSS (Total suspended solids) provides information on the dry mass concentration of solids per volume (mg/L), while turbidity is reported as NTU (Nephelometric Turbidity Unit). The higher the concentration of suspended solids, the dirtier the water looks and the higher the turbidity. However, neither of these two parameters provides information on important physical and chemical properties of the suspended substances, such as size distribution or the chemical composition.

Determining the particle size distribution (PSD) is essential to estimate whether the particles present in a RAS pose a potential risk to system operation and/or fish health, and to evaluate the quality of the treatment effort.

According to the literature, particles below 100 µm are seen as a problem, because these particles do not sediment. They can irritate sensitive gill areas, and provide a large surface area for heterotrophic bacteria or pathogens in the water column. The PSD in the RAS will depend on the given physico-chemical composition of undigested faeces, undigested feed, the shear regime of the system (fish movement, pumps, etc.), hydraulic residence time and cleaning procedure and equipment. Especially in RAS with high rates of water recycling and mechanical filters in water treatment, it is believed that the majority of particulate matter is between 1-100µm, because they are difficult to remove due to their small size.

Morefish offers measurement of the specific particle size distribution (PSD) for your system. The term "in situ" is Latin and means "in place", and refers to something that occurs in the actual, original environment or place. In contrast to this is "ex situ", where water samples are taken and sent to a laboratory for analysis. Transporting the fragile, mainly organic particles found in RAS water will affect the results, as the particles can either break up or coagulate during transport.

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