I use it to maintain along with Kalkwasser and Kents Liquid Reactor. I have a farely high calcium consumption for my tank(which is only a 20gal with a 10gal sump) so I dose 7ml A and 9ml B along with 4ml of Kents LR everyday to keep my calcium/alkalinity stable. IMO c-balance is best used when you figure out the calcium consumption of your tank and dose accordingly. If you just follow the directions on the back you can easily get your cal./alk. levels out of whack. This why I dose 2 more ml of B, because my alkalinity is used up a little faster than calcium in my tank so I dose accordingly. Hope this helps.
Aaron