Just using part B to raise Calcium will work.
I'm wondering why your Ca is still so low after a water change. Have you ever tested the Ca level of your freshly mixed saltwater?
Once you get your cal-alk levels stabilized then I reccomend dripp kalk 24/7 once I did my coraline went nuts know its more of nuissance since I have to scrape it off my front glass all the time..
no bang i havent tested it...i will next time i mix up a batch. flatz im assuming you mean kalkwasser (spelling?). i dont know anything about that stuff. also how much does it cost you to have it running 24/7. sounds spendy.
