Hi Steve and
to TR. I love my Seachem Mg test kit. But them I always was a geeky kid.
Seriously low Mg will make it difficult to keep the
Ca up. Mg should be at approximately 3 times the
Ca, I keep mine at 1250-1300 and my
Ca at around 450. I looked here
B-Ionic Calcium Buffer System and it does not appear the the B-ionic has any Mg in it.
