hi I have been looking at o2 emitters on you tube. By running a current between an anode and a cathode, the claim is they seperate the o2 from the hydrogen, increasing the amout of o2 in the water. In one of the videos they recommend using a declorinator as any salts also get broken down and chlorine is the by product. The process seems a great way to oxygenate the water as stones constantly block up. However if the process is also stripping the salts and making them toxic to the plants you are kind of defeating the purpose. I would like to know if anyone growing dwc uses them? or if they effect the grow? I thought they maybe good for the top up water and this way shouldnt effect the salts in the grow nutrients. wilson