Even more IO salt talk

[Aquattro]

I just measured my IO, and although I found nothing dangerous, the levels were different from last time I checked. Alk is a touch high at 14 dKH and calcium is 400 ppm.

Let's see if we can get some measurements from everyone on their freshly mixed IO.

For reference, the last time I tested it was 9 dKH and ~360 ppm Ca