Join Date: Dec 2013
Location: Beaver creek Ohio
That is correct but i wouldn't just add baking soda directy to the tank in a powder form. I think using the follow recipe will allow you to monitor how much you are adding in a more precise manner * I use it on my reef tank this is taking out of two part dosing recipe for saltwater but can be applied for fresh water*
Recipe #1, Part 2: The Alkalinity Part
Spread baking soda (594 grams or about 2 ¼ cups) on a baking tray and heat in an ordinary oven at 300°F for one hour to drive off water and carbon dioxide. Overheating is not a problem, either with higher temperatures or longer times. Dissolve the residual solid in enough water to make 1 gallon total. This dissolution may require a fair amount of mixing. Warming it speeds dissolution. This solution will contain about 1,900 meq/L of alkalinity (5,300 dKH). I prefer to use baked baking soda rather than washing soda in this recipe as baking soda from a grocery store is always food grade, while washing soda may not have the same purity requirements. Arm & Hammer brand is a fine choice. Be sure to NOT use baking powder. Baking powder is a different material that often has phosphate as a main ingredient.
Once this solution is created, it can be added as frequently as necessary to maintain alkalinity.