Magnesium question

[TKCC]

Hello RC, I was using the RedSea Mg test kit and couldn't seem to get my Mg up to the level i wanted (between 1250 & 1300). I slowly added B-Ionic magnesium as directed, and still I could not get it above 1200. I didn't want to just continue adding Mg, so i purchased the Salefert Mg test kit, and it's reading just under 1400. Will a Mg reading this high cause any problems? My other readings are below:

No3 = 0
Po4 = 0
Ca2 = 422
DKH = 8.6

Another concern is i'm using RC Pro with a high Mg concentration already.

Thanks in advance for your response!

 

[tmz]

1400ppm is not a problem.