Help! I need some suggestions to fix my dKH levels

[michika]

I'm using Seachem's Carbonate product in liquid form. It does work, its just not having a staying power. There is a upward movement in dKH after dosing, I just can't get the levels high enough, or get them to stay. I also tested just the product in freshwaster (before dosing), and it gives me a high dKH reading. I assume that means my product is okay.

I think I also need to do something about the fact that the salt I'm using starts out with low dKH. How do I address this?

I have tried using Baking Soda in the past, granted it was on a larger system, and I had to dose continually with it as well. At that time I was using a different salt brand.

So to sum up the suggestions so far:
- stop dosing to raise dKH, and instead focus on raising my Mg levels.
- look into if my additive is defective. Done.
- change the dosage in my reactor. Does this mean change the drip rate, or the strength of the additive entering the water?

I'm starting to think my problem is that I'm starting with low dKH (thanks to my salt mix), and once that is in my tank a lot of it, and the Ca is being used up because the tank is filled with SPS, and clams.

I guess the question is now how is the best way to raise and keep my dKH at appropriate levels? A reactor? A dosing pump?