Quote Originally Posted by TheXFactor
well im not 100% outta the woods yet.. all i have done so far is a basic repot into fresh soil and put water w/ 6ml calmag, and 5ml of liquid karma. ph was 6.2 when it entered....
Still, just a tad too low. As soil degrades, ph will go down further, taking it out of the 'acceptable' range.

Quote Originally Posted by TheXFactor
Rusty... i spoke to a knowlegable guy at foxfarms, and he said, in soil your always going to have a very low ph in the runoff.
Not necessarily so. I use an organic mix, and I use well water, which comes out of the tap at 8.0 ph. I use ph Down (phosphoric acid) to lower my water ph to 6.8 before watering. My runoff ph is a fairly consistent 6.8. If I run the unadjusted 8.0 ph water through, my runoff comes out at around 7.4. (was done just for testing purposes)
Also depends on if you are taking the readings on a plain watering day, or a feeding day. (nutes have a lower ph)
With any peat-based potting medium, ph will slowly degrade. This is why lime is added. To buffer the mix to around 7.0-ish. This effect wears-off after a couple of months.

Quote Originally Posted by TheXFactor
the only way to get a precise ph it take about a half cup of the soil and place it into about 2 cups of distilled water, swirl it around for a min then stick ur pen in.
I'm ok with approximate readings, as long as they are within the parameters of a 'normal' range.

Quote Originally Posted by TheXFactor
Ive taken my plain r/o water and ran it through some fresh soil and the ph was coming out at 3.9-4.2, thats LEMON JUICE!!
Are you using one of those color-coded test kits to check runoff? That would explain the low readings you're getting. The color coded kits needs a clear liquid to show accurate results. (the runoff is tinted, so will tint the color-coded result)
Rusty Trichome Reviewed by Rusty Trichome on . help my plants are dying... high quality pics. hey guys, ive been posting on mulitple forums and still not a single person knows whats going on in the tent here... heres the story and details... 400wMH 14-24inches, in a homebox tent. 18/6 in happy frog soil. many different brands of fertilizer, all high grade stuff.. i am using R/o water, and i add 1 tsp/calmag/gallon Rating: 5