
Optimize Fish Welfare with Submersible, Hyper-Efficient Oxygen Transfer
From the leader in nanobubble technology, Moleaer’s Freya submersible nanobubble generator enables fish farmers to achieve optimal water quality and reduce oxygenation costs.
ABOUT
Freya Nanobubble Generator

The Freya™ submersible nanobubble generators feature Moleaer’s patented nanobubble technology, built into a robust and durable system. Delivering the highest gas transfer efficiency and nanobubble production on the market, Freya offers the most cost-effective oxygenation - boosting and stabilizing dissolved oxygen (DO) levels for optimal water quality and lower oxygenation costs.
- 60-70 m3/hr (264-308 GPM)
flow rates - Assembled in Europe
- Horizontal or vertical installation
- Easy integration & installation
- High-performance pump
- Deployable down to 30 meters
- Saltwater compatible
MOLEAER
Over 350 Aquaculture Installations Worldwide
Moleaer nanobubble technology has the largest installation base in the world and is independently validated by engineering and innovation teams at renowned universities and research institutions.



Benefits
Industry Leading Gas Transfer
Moleaer nanobubble technology delivers >85% oxygen transfer efficiency, far surpassing conventional methods. This enables dissolved oxygen levels to increase while using far less oxygen (and energy) than other traditional methods. Moleaer nanobubble technology dissolves gas efficiently and produces a high concentration of nanobubbles.
Industry Experts Delivering Results
We’re more than a technology provider – we’re a team of engineers and application specialists with deep knowledge of the industries we serve. We understand your unique challenges and know how to apply nanobubble technology to achieve your desired results and ensure seamless integration into your operations.
Largest Global Service Network
With the largest global installation base, Moleaer’s Global Service Team brings unmatched experience to every project. From seamless installation to ongoing optimization, our experts ensure your systems perform at their best. We're here to support you at every stage, delivering the responsiveness, reliability, and results you need to succeed.
Freya
Freya Nanobubble Generator
Moleaer’s Freya submersible nanobubble generators significantly enhance water quality and oxygenation, and are specifically engineered to meet the unique demands of aquaculture.
Freya
Experience the cutting-edge technology of the Moleaer Freya™ Nanobubble Generator - a groundbreaking submersible oxygenation system engineered to dramatically improve oxygen use efficiency and reduce operational costs in net pens, waiting cages, RAS and hatcheries, and even emergency deployments. Enhance fish welfare with superior oxygenation and optimized water quality parameters.



Freya with Super Duplex Pump
Experience the advanced performance of the Moleaer Freya™ Nanobubble Generator with Super Duplex Pump – a robust, submersible oxygenation system engineered for challenging, high-temperature seawater environments. Featuring a corrosion-resistant Super Duplex Pump, this model is ideal for tropical aquaculture operations, including net pens, waiting cages, RAS, hatcheries, and emergency deployments. Deliver exceptional oxygen transfer efficiency, reduce operational costs, and enhance fish welfare through improved water quality — even in the most demanding marine conditions.


More Products
Need a different nanobubble solution?
Moleaer delivers adaptable nanobubble technology to meet your needs, including inline, pumpless nanobubble injection and RAS solutions.


Trinity
150-5000 GPM (45-900 m3/hr) | RAS, Wellboats, Waiting Cages | Inline integration

Titan Series
500 and up GPM (114 and up m3/hr) | Container, Trailer & Skid Mounted Configurations

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