Remineralizing RO water help please

[iShrimp]

I want to remineralize RO water for CRS but I need a little help please.

I have purchased:

TDS meter
RO water
Calcium Sulphate CaSO4 powder
Magnesium Sulphate MgSO4 powder

Please can anybody tell me are these the correct chemicals to use?
and how much of each i will need for the correct mix for 20L of RO

[lipadj46]

Yes those are correct. You generally want to mix them at 75% Ca to 24% Mg by mass. You should be targeting a gh of about 5-6 so tds should be around 100ish. I would get a gh test and get your gh where you want it measure the tds then use that when you remineralize

[binshtok]

where can i get Magnesium Sulphate powder????? and is any types of magnesium sulphate is ok?

[lipadj46]

where can i get Magnesium Sulphate powder????? and is any types of magnesium sulphate is ok?

Can you get epsom salts in your country? That is MgSO4.

[retardo]

I would just buy Seachem Equilibrium and reconstitute your RO water that way. One (1) tablespoon brings 20G (80L) of water back up 3dH.

[Bedfordshire]

I use Mosura Mineral Plus Ultra to remineralise. I used to used the home made powder form but could ever find the exact ones I wanted. Works for me, maybe I'm just lazy

[bakibgd]

I use Mosura Mineral Plus Ultra to remineralise. I used to used the home made powder form but could ever find the exact ones I wanted. Works for me, maybe I'm just lazy

Can you please tell us recipe for your home made powder? Can you tell us what ingredients did you use, and what was the ratio?
Thanks in advance!