In aquaculture, a consistent supply of oxygen isn’t just a nice-to-have – it underpins production. We explored management of oxygen in our previous article, but just as important is choosing the right oxygen supply mode. It’s a key decision that affects day-to-day operations, control over growing conditions, and ultimately commercial performance. And crucially, there’s no one-size-fits-all solution.

Choosing the right oxygen supply mode depends on a range of factors. From site location and existing infrastructure to species, water conditions and production stage, we work closely with customers to navigate these variables and select a system that works now, and scales for the future.

Even a brief interruption to supply can disrupt conditions in the tank or hatchery – affecting fish health and ultimately the bottom line. That’s why the right supply method isn’t just a technical choice – it’s fundamental to running a reliable operation.

When oxygen supply is stable, everything else becomes easier: operations run smoothly, growth remains consistent, and costly disruptions are avoided. So, what are the supply options on offer and how do you know what’s right for you?

While smaller or more remote setups may rely on individual cylinders, most commercial operations favour cylinder packs – multiple cylinders manifolded together (typically 12 or 16) to deliver high volumes of gas within a compact footprint. This approach offers flexibility without compromising supply reliability, particularly where space is limited.

As demand increases, liquid oxygen becomes a more scalable option. Mini tank solutions, such as the CryoEase® system, provide a practical middle ground, with storage capacities of 950 to 2,000 litres. These fixed structure systems are quick to install, require no upfront capital investment or complex civil works, and can be positioned easily on-site near a power source to keep them running. With integrated telemetry that measures real time levels of gas in the tank, they offer the operational efficiency benefits of liquid bulk supply without the same level of infrastructure.

For larger, more intensive fish farms and RAS systems, large-scale liquid bulk tanks – typically ranging from 6,000 to 60,000 litres – offer the highest level of consistency and convenience. While they require planning and civil work for installation, they deliver long-term cost efficiencies and uninterrupted supply at scale, ensuring that both fish health and margins are optimised.

Ultimately, every fish farm is different. Factors such as location, species and production targets all shape the right approach. With the support of experienced delivery partners, operators can be confident their oxygen supply is designed to meet both current needs and future growth.

Our team has the knowledge, experience and expertise to support your business end-to-end. To find out more, please visit – https://www.airproducts.co.uk/en-gb/applications/fish-farming