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The ability to combine biofiltration and hydroponics allows for aquaponic system to in many cases eliminate the need for an expensive, separate biofilter.

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These factors influence the concentration of nutrients from the fish effluent and how much of those nutrients are made available to the plant roots via bacteria.There is a branch of aquaponics using saltwater fish, called saltwater aquaponics.There are many species of warmwater and coldwater fish that adapt well to aquaculture systems.Mark Mc Murtry et al., other institutes soon followed suit. James Rakocy and his colleagues at the University of the Virgin Islands researched and developed the use of deep water culture hydroponic grow beds in a large-scale aquaponics system.The first aquaponics research in Canada was a small system added onto existing aquaculture research at a research station in Lethbridge, Alberta.

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