Mixing Sodium Bicarbonate and Soda Ash together?


New member
I have a gallon of BRS of each.
Can I mix 1 cup each of them 50/50 in a gallon of RODI for 2 part dosing?
I saw 85/15 soda to ash somewhere, would a 50/50 mix raise ph to much? That wouldn't bother me too much being winter and the place is closed up a bit.


Premium Member
You can mix the supplements in any ratio and the tank likely will be fine. Using about 15% dry soda ash to 85% dry baking soda gives a mixture that affects pH the least. Lots of people use 100% soda ash with no problems, though. Is there a a specific problem that your tank is having with pH? Some tanks are better off with baking soda.


Premium Member
You're welcome. The only issue with mixing is you'l have to keep in mind the different concentrations.


Team RC
You could change the Sodium Bicarbonate into Soda Ash by baking it in the oven at 400 degrees for an hour.