Potassium dosing

BHornsey

Lifetime Charter Member
Lifetime Member
Aug 4, 2006
125
0
16
60
Doncaster, UK
Hi,

I've just got a question on K dosing. My local tap has quite a bit of nitrate & phosphate in it so I don't dose these after a w/c. I tend to dose a bit of K (my water report doesn't list K) so I can cover this.

My question is whether it's preferable to use K2SO4 or KCl? I have both.
I've looked through the various newsletters but can't decide.