Re: RO water Seachem and Discus
Many thanks for you answer, but I would like to discuss further this question because probably my question was not clear.
First of all, if, as you say, pH relay KH, it is true only partially. pH I proportional to [H3O]+ and that’s it !
It is possible to have pH 4, 5, 6 a KH 2; it depends how much acid (i.e. CO2 into the tank) one use, but does not chemically correlates to [CO3].
Actually my question was another one: I asked how to prepare RO water to bring it at KH2 and pH 6 not into the tank but when I prepare it.
So, for this purpose, I need first to “buffer it” at KH 2 and then to acidify it a pH 2 since “non phosphate buffer” do not allow to have acidic pH.
So: which seachem products can I use to get such values ???
Many thanks again.
PS: I would exclude phosphate buffer if possible