Well I was finally to check my waer chemistry today. TDS from Hanna meter and Ca levels from Salifert testBert H said:Dennis, I am curious if you have ever determined how much of your gh is from Ca vs Mg? In my case I have a gh of 11, and kept seeing curling stunting on and off on my A. reinickii. So I bought a Ca test kit and found most of my gh came from Ca. I started adding Mg and saw improvements, with still the ocasional stunting. I got some aromatica recently and am having a heck of a time with it - growing real slowly, older leaves getting pinholes and stems rotting. So I am in the process of gradually increasing the Mg to see if it helps. Do you know at what point (Ca/Mg ratio) is it you see inhibition?
Your Ca and Mg numbers are stilll in CaCO3 equivalent numbers, the real ppm for Ca and Mg are:dennis said:Well I was finally to check my waer chemistry today. TDS from Hanna meter and Ca levels from Salifert test
TDS 264 ppm TDS 96ppm
GH 12*= 213.6ppm GH 8*=142.4
Ca 150ppm Ca 120ppm
Mg 63ppm Mg 22ppm
That means that my tapwater has pretty good parameters but my tank water is out of wack due to, I assume, my heavy dosing of CSM and the use of and Onyx/Eco mixed substrate.
Also, can the tap measurments be correct? Is it possible to have a Gh higher than your TDS?