Quick question.

If a man is growing cannabis without a pH meter and starts to get a Magnesium deficiency (although he feeds Mg supplements), it is safe to say that acidic soil is causing this, isn't it?

Same concept could be applied to Nitrogen, Calcium and maybe Phosphorus, Potassium and Sulfur, right?

he could get some PH drops, quite inexpensive, they would certainly give you a much better idea of where your are
as far as being too acid, it's possible but usually it's the hard water with the higher PH that causes problems

Distilled water is what the man uses everytime...

misread the original post, thought it was acidic water, still weed is pretty comfortable with a fairly low ph
don't use distilled myself, i do see plenty who do

2xM said:

I it is safe to say that acidic soil is causing this, isn't it? Same concept could be applied to Nitrogen, Calcium and maybe Phosphorus, Potassium and Sulfur, right?

Click to expand...

No, not safe to make any of these assumptions.

It is safe to assume this man will have ALL KINDS of potential for mineral deficiencies due to using distilled water.

Distilled water is just that, 'purified water'.. it offers nothing to your plant but 'wet'..

If you are going to keep going bottled, use mineral water..... In most places tap water is far superior to distilled (in my opinion, unless you are deliberately supplementing extra trace minerals). In fact water from a hot water heater cooled down, contains incredible amounts of calcium and magnesium and other trace minerals.


That is just one guy's random thoughts..

get yourself some drops or strips.. you can find strips for about 3 bucks.. drops for about 5.. well worth it.. cannabis is very forgiving, but you want to make sure to keep it in the 'ballpark' as well as have something to test runoff .. even strips are better than nothing.

good luck mate.