Well said. There is some literature on the subject, try google "ORP cannabis".
There is a subtle relationship between pH and ORP. On aquaculture ORP is an important parameter in water management, and hydro culture is also all about water management. I am not saying plants and fishies are the same, it was just a thought that maybe in connection with the use of beanies and when sterilizing a system.
A rising ORP will indicate a falling level of organic matter in the water, falling ORP the opposite.