Just to add to the confusion.... and food for thought.
baking soda - sodium bicarbonate raises alkalinity but may temporarily depress PH
baked baking soda (soda ash) - sodium carbonate raises alkalinity and will temporarily increase PH
Most of us use the 2nd form, sodium carbonate.
So depending on your tank you want to select one or the other...
baking soda - sodium bicarbonate raises alkalinity but may temporarily depress PH
baked baking soda (soda ash) - sodium carbonate raises alkalinity and will temporarily increase PH
Most of us use the 2nd form, sodium carbonate.
So depending on your tank you want to select one or the other...