Ca and Alk usage

[gregzz4]

After re-reading this thread I see I came across as blowing off advice

I should have pointed out that a Ca Reactor just isn't in the budget right now, so I'm stuck with 2 part for the time being

As suggested, I'll test more frequently for a week or 2 and then I'll get a couple drip containers to start with

I see Kalk wasn't mentioned - that's OK
From what I've read about it I don't want to use it as I don't think I want my Alk as high as 10 or 11