dang david -wi ,,what kinda aquaponics setup you have that's going to burn through that much oxy ???? id think if you put tooo much oxy into a system it will do more harm than not boosting it ?????? ----then again I guess ya can always just pipe a lot of it into your home or just out the roof ??? or endless other uses for spare oxy
any chance ya can throw a few pics of your total system ??? I imagining several greenhouses filled to the brim