Is better to use a mix of tap/RO water or only RO water for CRS?

[Piyayo]

What do you think?

I would like to hear yuor experiences about this. If you use a mix of water, Which is the proportion of tap/RO water?

Thanks.

[lucasjiang]

For me, i use 100% tap water, and i think most singaporeans do so,
but it must be dechlorinated first.

Fowever, tap water from different countries have different pH, minerals etc, i would suggest you check with your local water board, or at least measure some stuff like the pH.

[Piyayo]

Hi,

Thank for your information

I live in Madrid, and water here is very soft:
Ph 7,6
Kh <1
Gh 2

Can I use this? I thought it was better to use RO water?

Anymore suggesttions?

Thanks