CAL-MAX

[herbie the love bud]

so you have hard water formula nutes, then don't do the reverse osmosis or the cal mag. Just add your other nutes and go.

[immortal420]

My water source is distilled with a TDS of 0. I can't use my city water anymore, my plants got hard water burn and hence why I switched to distilled in the first place.

Now, I'm in a tricky situation..My water was is too pure so I have to add the calcium, magnesium and iron back into it. My city water used to be 400-600 ppm so I'm gonna try to get my 15 gallons of water to 210 ppm of the CAL-MAX.

[LOC NAR on probation]

When you start with nothing in the water your in control. 210 to 300 is what your looking for. You got it Bro. Rock on.