Moleaer Inc. has announced the global launch of Freya, its first fully submersible nanobubble system for aquaculture. Freya is designed to improve oxygen delivery, reduce costs, and enhance fish welfare. The system is the result of years of development, more than a year of extensive field testing, and competitive trials in some of the world’s most demanding aquaculture environments.
With rising sea temperatures and stricter environmental regulations challenging the industry, traditional oxygenation solutions often struggle to keep pace. Freya addresses these challenges with advanced nanobubble technology that delivers over 50 kg/h of oxygen at more than 85% transfer efficiency, in a compact, low-energy, submersible unit. This enables operators to cut oxygenation costs and energy consumption. Field trials have demonstrated that Freya can reduce oxygen usage by up to 41% and lower oxygenation-related energy use by up to 60%, strengthening oxygen management in both daily operations and emergency conditions.
Warren Russell, Chief Commercial Officer at Moleaer mentioned: “The industry has been looking for a solution that improves oxygen delivery while lowering energy and operating costs, and protecting fish welfare.” Rusell also added: “Freya delivers on all counts, combining proven performance, lower oxygenation energy use, and a flexible, fully submersible design that works in virtually any aquaculture environment.”
The system has already proven its value with leading producers. In Norway, Salmar Innovanor tried it and quickly doubled dissolved oxygen (DO) levels during harvest, allowing more intensive crowding without compromising welfare and improving fish processing quality. In the summer time, the temperature increases and keeping the levels of DO is a challenge, but with Freya, SalMar Innovanor has been able to fully utilize its waiting pens even under warm conditions.
In Chile, Freya was tested in net pens against industry-leading solutions, achieving dramatic reductions in oxygen usage while maintaining higher dissolved oxygen levels, improving fish welfare, and preventing mortalities.
Freya’s rapid adoption includes new commercial agreements, including Salmon Evolution, a leader in land-based salmon farming, which selected Freya for emergency oxygenation across twelve tanks at its Indre Harøya facility.
Freya integrates Moleaer’s proprietary nanobubble technology to produce nanoscopic bubbles that stay suspended longer, delivering oxygen more efficiently than traditional systems. This enables precise oxygenation with lower gas and energy input, all in a seamless design that can be deployed in nearly any system configuration.
