Soda ash (sodium carbonate) plays an important role in the ph buffer system. It is also falls under the category of alkalinity.

How well the aquarium’s water can maintain its ph against acid is a measure of alkalinity. Acids come from a lot of different sources. The first is your tank’s nitrification cycle produces acids. Second, wastes from the inhabitants that form organic acids from metabolic waste. And last is excess carbon dioxide from insufficient gas exchange. Alkalinity is measured in meq/l, or Kh/dkh.

Bicarbonate, Carbonate, Calcium, and Borate are all a vital part of the ph’s buffer system. By adding soda ash (sodium carbonate), replenishes carbonate in the buffer system and in turn raises alkalinity.

When adding soda ash into the system you may notice an initial increase in ph but after 30 minutes goes by the ph starts to return to it normal position. With this in mind it is wise to incorporate a 50/50 mix of baking soda and soda ash in order to offset any drastic changes in ph.

I started using this product 3 months ago and I am very happy with the decision to try it. Have a heavy load on the reef tank so I find these
bulk/dry additives much easier to titrate and regulate. Most stores do not care the bulk liquid additives which prompted my intial switch. I have a
larger tank and over the last few months find this product much more economical than the liquids. rnMake sure you add the soda ash and baking soda
together as recommended.