Ro di removes tds total disolved solids the stuff that adds hardness and therefore ph+. Things like calcium magnesium chlorine chlorides good stuff and bad stuff so it leaves your water very neutral lacking any substantial ions. Your water coming out of rodi is "hungry" it will pull ions from its surroundings. In a salt system this is a good thing because you are going to be dumping an S load of salt with all kinds of ions into it all good stuff. In fresh water not so good as it will leach stuff from what you put in to it like plants fish substrate. You get the point. I'd look into some of the sites that sell rodi units not resell them but one of the manufactures they usually have all the info you need. Thats where it started for me when I started upgrading tank size in salt. OIt'sts not that hard but I'd not worry about it if I were you.thanks for the correction.
I was thinking about doing the RODI thing, but then I read somewhere that using only RODI water was dangerous because of the lack of nutrients and that you would have to add in nutrients. Then I read somewhere and that it doesn't really change the pH, just the mineral content.????
However, I trust your expertise over random comments on the internet. I haven't done enough research, so I don't really know how RODI works, benefits, cons, etc. Do you have any good websites or resources to learn more about it?
