Re: News: Fish farmers advised to add plants
Aquatic plants are a natural part of the aquatic environment and provide filtration, cleansing and re-oxygenation as a matter of course. Aquaculture without plants is a pretty impoverished place were waste has to be removed and re-oxygenation equipment used to improve the water quality, this machinery costs money and makes aquaculture more expensive than it should be, let alone the feed costs.
Plants also provide a natural habitat for aquatic invertebrates, part of the food requirements for fish. This would not be the case in aquaponic units which are by definition much more sterile.
Depending on the type and species of aquatic plants that are selected to perform these water quality improvement operations they will also be and provide another revenue stream, making aquaculture a much more profitable enterprise. For me aquaculture without plants does not work efficiently.