Liquid Reactor question

[molybdenumman]

I got some liquid reactor about a week ago in hopes of jacking up my Ca levels.

Apr 14 Ca 390 ppm alk 9.8 dKh (3.52 mEq/L)
Apr 17 Ca 370 ppm alk 9.6 dKh (3.42 mEq/L)
Apr 20 Ca 380 ppm alk 9.0 dKh (3.2 mEq/L)
Apr 23 Ca 370 ppm alk 7.9 dKh (2.85 mEq/L)

Now I may be a dummy, but I thought that adding the liquid would increase both my Ca and alk, not decrease both. I am adding 4 capfulls nightly to my 90 gallon as it recommends.

Can someone explain to me what is happening?

DanTheMan