magnesium overdose

[calvinci]

hello, I was adding Mg without measure, until last week, I check and it's 1550ppm, Ca is 380ppm, dKH 8 and pH 8.1-8.3. What do I need to do to lower the Mg? What's the bad effect of high Mg?

[Avi]

I don't know what the bad effect would be, but just do a water change and you'll get the high number down. It's not so high that you'd have a negative reaction, but get it down a few hundred ppm.