Mike,
I'll chime in until someone more chemistry minded catches up with this.
Your Ca probably dropped because your salt mix was lower in Ca. Just bump it back up.
I've always found that just dripping kalk couldn't keep up with any of my tanks demands. Unless you have enough evaporation that you can replace enough water with kalk, it won't. I used to drip kalk and then bump it back up with a Ca supplement.
Raising Ca directly will not drop alk unless you go entirely too high with the Ca. As long as you stay within normal Ca ranges, you'll be fine.
Jerel
I'll chime in until someone more chemistry minded catches up with this.
Your Ca probably dropped because your salt mix was lower in Ca. Just bump it back up.
I've always found that just dripping kalk couldn't keep up with any of my tanks demands. Unless you have enough evaporation that you can replace enough water with kalk, it won't. I used to drip kalk and then bump it back up with a Ca supplement.
Raising Ca directly will not drop alk unless you go entirely too high with the Ca. As long as you stay within normal Ca ranges, you'll be fine.
Jerel