
Inside the rearing hall (visualisation)
Technology
Introducing state-of-the-art, sustainable aquaculture technology to Bavaria.
Advancing sustainable aquaculture through innovative
Recirculation Aquaculture System (RAS) Technology
Our farm will be modernised by utilising cutting-edge recirculation technology. This will enable us to farm and process Atlantic salmon sustainably and locally while minimising the negative environmental impact of farming. Additionally, our facility will ensure our fish are healthy, free from antibiotics and raised without exposure to ocean microplastics, and fully traceable in production and waste emissions. Growing our fish regionally means a far shorter journey from harvest to plate, which means longer shelf life and better quality for our customers.

Innovative Recirculation Systems
Castell Salmon will use a flexible, module-based recirculating aquaculture system (RAS) optimised for salmon farming. Our system will ensure stable water parameters, which optimise growth, reduce the feed conversion ratio (FCR), and enhance survival rates. It will maintain a controlled environment through advanced recirculation technology.

Sustainable Energy Use
Leveraging the latest advancements, the third generation of the RAS2020 will optimise water, electricity and oxygen consumption. Coupled with our spring water supply used as cooling water, our system will exemplify energy efficiency in aquaculture.

Water Treatment and Quality Control
Our state-of-the-art water treatment will use drum filters and Moving Bed Biofilm Reactor (MBBR) technology, ensuring the highest water quality by removing harmful substances and optimising oxygen levels. This will create a healthy growing environment for our salmon and significantly reduce water usage.

Feed Management System
Our centralised feeding system will integrate data with RAS water quality management. This predictive tool will allow proactive interventions to optimise feed conversion ratios and growth performances, significantly enhancing resource efficiency.

Dynamic Tank Design
The grow-out module will feature adjustable water velocity and movable grids within two main circular tanks, providing optimal conditions across all stages of salmon growth. This design will minimise stress and maximise fish welfare, producing high-quality, healthy salmon.

Biosecurity and Fish Welfare
Castell Salmon will prioritise biosecurity and fish welfare with minimal human interaction, without antibiotics or pesticides. Our RAS systems are designed to reduce disease risk and stress, ensuring the health and quality of our fish from egg to harvest.

Advanced Filtration and Oxygenation
Our facilities will be equipped with cutting-edge filtration and oxygenation technologies, including ozonated protein skimming and CO2 degassing. These processes will ensure the removal of excess bacteria and maintain ideal oxygen levels throughout our tanks.

Integrated Control Systems
Our operation will be overseen by a sophisticated SCADA system, enabling precise control over environmental conditions such as pH, temperature, and water quality and enhancing the safety and efficiency of our farm.

Technology-Enhanced Fish Welfare
Our operation will prioritise our salmon's physiological and biological needs with designs that prevent early maturation and stress. Continuous evaluation and risk management practices will be employed to maintain high fish welfare standards.

Sustainable Waste Management and Environmental Protection
Our facility will feature an advanced Waste Water Treatment Plant (WWTP) with sludge dewatering and sophisticated MBBR systems, efficiently treating and reducing nitrogen and organic matter. Incorporating sustainable practices, we will ensure all by-products are managed responsibly and dramatically lower the environmental impact of our operations, aligning with global sustainability standards.
Why it matters
The technology is only worth building if it protects the water, the fish and the landscape around the farm. See what that means in practice.
OUR SUSTAINABILITY