Thanks Rex. I have been reading your site and it has been very helpful so far in the planning phase.
I did some calculations, and in order to raise both kh and gh 1 degree in my 20 gallon tank, I need to add approx 1/3 teaspoon of baking soda, 1.58g of calcium chloride, and .66g of epsom salts. Is my math correct?
Also, what's the best way to measure out grams? Is there a conversion to teaspoons that I'm not aware of? Or do i just bite the bullet and get a scale?
Last question (for now), where do i get calcium chloride?