How to increase KH

[zahira]

I have a 150 gallon tank and have a problem with my kh (dKh?) which is low (6.5). I believe I can increase it using bicarnonate of soda. Any suggestions as to the dosage I should use on a daily basis and how much the dosage will increase the kh by daily.

 

[examiner]

This should help....

http://home.comcast.net/~jdieck1/chem_calc3.html

 

[Billybeau1]

Baking soda like Arm and Hammer will do the trick. If your PH is in check thats fine. If your PH is low then bake the baking soda first.
That calculator tells how much.