in biology we often measure and discuss supersaturation of streams, and inparticular mountain stream that are prime trout spawning and juvenile rearing habitat. Saturation occurs at 12-13 mg /L O2 at 4 degrees Celsius and sea level. Super saturation can see levels climb to 135% or 16 -17.5mg/L....although I do not have a great understanding of the botanical world, it would sem to me thatsupersaturating the water could have beneficial consequences. It certainly helps fish grow bigger! hahahahahaha
What about hooking up an oxygen bottle and releasing the gas through an air stone in a dwc set up? You could have super saturation all of the time. I imagine a dwc set up outside with the Ronco Oxyturbo, growing giant 30 ft. tall super silver haze!
Not recommended for stealth grows, see your retailer for details.
Oh, the humanity...