Fish breeding








Advanced integrated Recirculating Aquaculture System (RAS) technology offers maximum control, minimum maintenance and ultimate sustainability.

In cooperation with nature, we use the top AQUA MAOF technology, which is adapted to our needs so that the aquaculture facilities of the future are more sustainable, ensure better efficiency, productivity, traceability and food safety, and at the same time improve the quality of fish.

A smart eco-system based on RAS

The advanced AquaMaof Minimal Liquid Discharge (MLD) technology utilizes several water treatment patents and filtering techniques to cut water consumption. At the core of the AquaMaof integrated RAS technology is efficient power management, dramatically reducing costs of energy. Strict biosecurity protocols and complete environmental control enable elimination of antibiotics and chemicals in the process and high survival rates. Sophisticated scalable and flexible design enables adaptation to different requirements, and integration of new technologies as they become available. Smart selection and allocation of system components result in a robust facility, requiring minimal maintenance, while optimized feeding modes and advanced feeding management system – enable reduction of the Feed Conversion Ratio (FCR) and operational costs.

  • 2X more production
  • 60 % less energy
  • 90% less water




Bio-Security Control

The facility is designed in accordance with strict bio-security protocols.

  • Quarantine
  • Disinfection
  • Staff movement control
  • Safety procedures for entering and exiting the facility 
  • SOP 

Harvesting and grading system

The Harvest Channel is a rectangular cross-section channel located between the Production Tanks. It is connected to each tank by a "monk" door.

After the monk is opened, the fish are pushed into the Harvest Channel using a fish pusher.

After all fish are in the channel the monk door is closed to prevent the fish from re-entering the tank.

The Fish Screw Elevator is based on the Archimedes Screw concept, gently rotating to elevate the fish into the Grader while keeping the fish in water at all times.

The grader is located adjacent to the processing plant load area or packaging and dispatch hall.

Monitoring and control

24/7 monitoring of all critical system components and water parameters, providing alarm signals and SMS (texting) notification of critical faults. Moreover, the system automatically activates emergency backup systems including electricity generator, oxygen supply, process. Monitored parameters:

  • Water: level, temperature, dissolved oxygen, pH, ORP, NH4-N, NO2-N, NO3-N, ALK, P, K, TDS
  • Environment: temperature, relative humidity, air change
  • Equipment: biofilter, pumps, blowers, oxygen generator, feed system

Filtering system

100% of water goes through filter treatment with every cycle.

No bypass loops.

Aerobic bioreactors are used for nitrification and PH balance.

Anoxic bioreactors are used for denitrification and alkalinity adjustment.

Improved solid waste separation without drum filters.

High efficiency AquaMaof CIFT filter: adds oxygen and removes CO2, uses no pumping – only gravitation flow, and has optimal water distribution.


Fish transfer system

Harvesting of the fish is carried out when they have reached their desired weight in line with the Fish Stock Management Plan.

The fish are transferred stress-free, from and between the tanks via the Harvest Channel.

A Fish Screw Elevator (Pescalator) transfers fish from the Harvest Channel to the Fish Grader.

A Fish Grader sorts the fish into prefixed sizes, undersized fish returned to the tanks for further breeding.

Settling Filter 

The second step in the solid waste removal proces.

Contains media through which the water flows.

The discharged water slowly percolates upward - any heavier than water solid particles settle on the floor.

Improved solid settling capability and reduces the total basin without media.

Provides some denitrification of the nitrate (nitrogen) content of the water.

Biofilter system

The Biofilter is a non-mechanical water treatment system for growing bacteria on a filter media designed to provide a large surface area in a small volume.

The growing process of bacteria neutralizes toxic fish wastes into by-products that are not harmful.

Water flow from the Settling Tanks is controlled automatically.

The bacteria convert fish waste products, oxygen and alkaline water into nitrate, carbon dioxide, and hydrogen ions.

The nitrification of ammonia is a two phase process. First, converting ammonia to nitrite and second, converting nitrite to nitrate.

Oxygen dissolving system (ODS)

More Oxygen with less energy.

Oxygen generated on site.

Waste heat recovered.

Oxygen level regulated in each tank.

Industrial production tanks

The AquaMaof fish production tanks are designed to hold the growing fish as well as removing some of the solids from the water.

A sediment trap for collecting fish waste solids is located in the center of the production tank and is covered by a grid and fine mesh screen to prevent the fish from escaping. 

The production tanks have an individual Feeding System and "monk" gate openings for exiting the fish into the Harvest Channel.



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