Tap water PPM

[maro69camaro]

Ok how low of PPM before you start supplementing cal and mag? My Tap water is 40 PPM should I be supplementing with CalMag?

maro69camaro Reviewed by maro69camaro on 08-13-2010. Tap water PPM Ok how low of PPM before you start supplementing cal and mag? My Tap water is 40 PPM should I be supplementing with CalMag? Rating: 5