12-12-2007, 10:10 PM
Join Date: May 2004
| | Re: Once more about soft vs. hard water and Ca:Mg ratios
Thanks Kekon, our new investigating plant guru brain =) You summerize the experience that me including some softwater guys in Sweden have found out (thanks to your earlier hint of low NO3:s).
I myself have 2-3 KH and GH. If I dose more than 10 ppm NO3 each week A. reineckii, L. glandulosa and L. arcuata curls up. M. umbrosum just stops growing.
Now I'm in a state where P. helferi are showing white new growth and it seemed more Fe helped, but thanks for the heads up with the Mg!