There are also a number of issues with large scale aquaponics, even including e-coli issues.
Ken,
How are there ecoli issues with large scale aquaponics when ecoli only comes from mammals and not cold blooded animals like fish?
The huge spring that provides water to the raceways receives both groundwater and runoff from nearby cattle fields well above the spring, and well away from the spring. The water is run through UV light before entering the raceways, but there is always some present, or the possibility of it being present is always there. If the cut lettuce is accidentally splashed with water, or if some leaves happen to touch the water, they become contaminated and cannot be commercially used.
