Here's what I do, and I have been pretty successful with my aquariums. I drip kalkwasser every day in the mornings before the lights turn on and a slow drip during the day to keep calcium levels up. Once a week, I use a marine buffer from SeaChem. It's the same thing as baking soda, except that if you use a tbs or the whole container it sets the pH at a constant 8.3 as well as fixes your dkh. Over time, dripping kalkwasser makes your aquarium used to having that buffer, and therefore when you don't dose your aquarium, your parameters are going to drop! If you dose every other day, you're going to affect your aquariums parameters adversely. Just my opinion.