Asking the Pros - an assessment of hydroponics professionals’ attitudes towards aquaponics food production

In the face of a growing global population and a changing climate, the way we grow food is under pressure to change. Scientists and policymakers are looking for methods that produce more food while using less water and creating less waste. One approach that has gained attention is aquaponics, a system that combines fish farming with plant cultivation. In this setup, the water from fish tanks, rich in natural nutrients, is used to feed the plants, and the plants, in turn, clean the water before it returns to the fish. This creates a closed loop that reduces the need for external fertilizers and water. While the concept is not new, it has recently been promoted as a sustainable solution for the future. However, despite the scientific interest and the promise of environmental benefits, very few large-scale commercial farms have actually adopted this method. Most operations remain small, educational, or research-focused.

To understand why this promising technology has not taken off in the mainstream, researchers turned their attention to the people who are already experts in a related field: hydroponics. Hydroponics is the practice of growing plants without soil, using nutrient-rich water instead. These farmers and industry professionals are the most likely group to switch to or invest in aquaponics, yet they have largely stayed away. The question driving this study was simple: what are these experts thinking? Do they see the technical challenges of managing fish and plants together as the main barrier, or are there other reasons holding them back? By asking these potential adopters directly, the researchers hoped to find out if the scientific community is solving the right problems.

The study, conducted in late 2023, surveyed 118 professionals from the hydroponics industry across the globe. The participants included farm managers, greenhouse operators, and suppliers of equipment and services. They were asked to share their views on several aspects of aquaponics, including how difficult they thought it would be to manage, whether the laws surrounding it were clear, how profitable it might be, and how sustainable they believed it to be. The researchers then analyzed these responses to see which factors most strongly influenced whether these professionals felt positive or negative about the idea of aquaponics.

The results revealed a surprising disconnect between what scientists often focus on and what potential investors care about. For years, much of the research in aquaponics has been dedicated to solving technical management issues. Scientists have worked hard to figure out how to balance nutrients, treat fish diseases without harming plants, and prevent clogs in irrigation systems. It was widely assumed that if these technical hurdles were cleared, the industry would embrace the technology. However, the survey showed that for hydroponic professionals, the perceived difficulty of managing the system did not significantly change their attitude toward it. Even though they acknowledged that managing fish and plants together is more complex than just growing plants, this complexity was not the primary reason they hesitated to adopt the system.

Instead, the study found that two other factors were the true drivers of opinion. The first was the perceived economic viability. Professionals who believed that aquaponics could be profitable were more likely to have a positive attitude toward it. Conversely, those who doubted the financial returns were skeptical, regardless of how well the technology worked. The second major factor was the perception of sustainability. When professionals believed that the system offered genuine environmental benefits, their attitude toward it improved. Interestingly, the study also looked at legislative issues, such as the confusing laws that often prevent aquaponics products from being certified as organic. While these legal hurdles were recognized, they did not emerge as the single most dominant factor shaping the overall attitude in the same way that money and environmental impact did.

The researchers concluded that the path to wider adoption may not lie in further technical refinements alone. While solving management problems is important, it appears that simply making the system easier to run will not be enough to convince hydroponic farmers to switch. The data suggests that the scientific community needs to shift its focus. To encourage adoption, efforts should be directed toward clarifying the economic picture. This means providing clearer data on profitability, helping to navigate the complex legal landscape, and improving marketing so that consumers understand the value of the products. If the economic benefits can be made clear and the environmental advantages can be effectively communicated, the attitude of the industry may finally shift. The study implies that the technology is ready, but the business case and the public understanding of its value need to catch up.

One limitation of the study is that the sample size was relatively small, with only 118 respondents, which means the findings should be viewed as a strong indication rather than a final verdict. Additionally, the group surveyed was predominantly male, which might not perfectly reflect the entire global workforce in the sector. Despite these constraints, the study offers a clear message: the barrier to aquaponics is not just a technical puzzle to be solved in a lab, but an economic and communication challenge that needs to be addressed in the marketplace. Until the financial and environmental story of aquaponics is told more convincingly, the industry is likely to remain on the sidelines, watching from a distance.