Well Calgary, I think many of the posts above me answer your questions but: I do not know what minerals the rays NEED, I expect many or all of them?
The amazon has significant Si, Al, Fe, Na, CA, K, Mg, Ti then quartz and Kaolinite. To understand this further you need to read up on resuspension.
The amazon is not fed by rainwater as in it rains and the amazon fills up in situ, you need to look at the source and what it picks up along the way. It would seem that there is a large difference of opinion and a large expanse of understanding here, I expect this thread will go down hill and eventually locked. Some people will use RO straight, some will mix it, some will correctly add back in the remineralistaion (IMO and supported by suppliers of RO equipment) and others like me will prefer not to use RO and use heavy metal axes but keep the PH and GH higher.
Pure RO cane be looked up on tinternet and you will soon learn a few things: 1) RO should be aerated for atleast an hour before use as it can be devoid of oxygen, often registering nil. RO should be stored in non metalic containers and be careful what plastics as the water leaches everything abck in to replenish the lost nutrients. Pure RO has 0 tds and therefore has no buffering capacity so earlier in this thread the poster claimed to use pure RO but then told us his KH and GH therefore unless there is a load of dissolving substrate, rocks or coral sand somewhere then the test kits are wrong or it is not pure RO. Virtually every RO supplier says do not use it straight.....
