RO water !?

[Coco60]

Hi folks. I have RO water system at home and planning to build an aqua terrarium with a dozen tetras. To treat RO water do i simply need to add some kind of minerals only for my water changes or do i have to do more than that ?

[rlederer]

What I have done with my R/O system is to put a valve in the R/O line so that you can adjust the pH and other water parameters of R/O water by adding water straight from your water supply. That way you don't have to add anything.