10/08/2026
At Aarup Mølle Fish Farm in Denmark, our partner TECHRAS Nano integrated nanobubble technology into the facility's return water system.
Return water left the biofilter at about 78% oxygen saturation, and after nanobubble treatment 125% was measured at the pond inlets.
But operators also saw changes beyond oxygenation:
• Less algae growth
• Less biofilter fouling and clogging
• Fewer cleaning hours
• More stable biofilter operation
One of the most visible results came from two ponds started at the same time under comparable conditions. The pond receiving Moleaer nanobubble-treated water showed noticeably less algae growth.
Fish welfare was also monitored. A veterinary assessment reported good water quality, good appetite and generally low mortality.
In a separate study at Dalhousie University, researchers observed lower mean geosmin concentrations in a recirculating aquaculture system using Moleaer Nanobubbles compared with a control system, pointing to how they may help address off-flavour, one of the industry's persistent challenges.
The results at Aarup Mølle show how Moleaer nanobubbles support improved water quality, more stable biofilter performance and reduced maintenance demands in aquaculture.
Swipe through the results. Learn more about the project here: https://danskakvakultur.dk/dambrugsforsoeg-med-ny-teknologi-gav-mindre-algevaekst/