I don't think it can .... it would be like having an aquarium, and siphoning off some of the water every so often into a GB, but once the plants use up the nutrients, there's no way to get new nutrients to the plants until there is a demand for more new water ...... I looked at this system when I was getting interested in aquaponics ...... besides the price scaring me off, it wasn't a recirculating system, so I passed on the idea. I honestly don't see that as a good system whether it's used in aquaponics or hydroponics.Originally Posted by badflash
Just my 2 centavos ........