At least Cincy is experiementing. All BOB has done is made unproven claims. If you have ready many of my posts to bob in the past, thats the only thing i asked for.
And your prediction BOB is so full of it. All Cincy has to do is test the tap and see how much heavy metals there are and then compare it to after "plant life" And if you really wanted to make it more comprehensive, then a tank using RO water should be setup. But make you you test for more than just the norma. You really need to test for things like copper, flouride, other metals.
And you should be the LAST one mocking a CURE ALL> No one here has said RO is the cure all. We advocate a combo of RO, skimmers, fuge of macro, and water changes. You are the only person that has implied anytype of cure all. Plants will cure nitrates, heavy metals, phosphates, copper, the cycling process, and even ich!