GH Booster with hard water?
So I've been looking into this GH Booster and it looks like it has Ca, Mg, and K.
As per EI dosing, the instructions are 1x a week. Should this dosing be done in the middle of the week, say on Wed. if my water change is on Sun.? It sounds like with my hard water, I'm already adding Ca and Mg when I do the W/C. If I dosed in the middle of the week, then it would actually be a booster, right?
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