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A little help for a long time lurker

I have been doing my mmj thing for quite some time and usually it is very uneventful and leads to high quality meds. I am by my nature a tinkerer and never leave well enough alone (I have tried and enjoyed most styles of cultivation) This latest round I changed everything and am paying the price.

For this round I thought I would attempt and organic, nothing but straight water grow. Everything was really nice all through veg and about the first week of flower. My new soil was a mix of roots organic, ffof, ffo, light warrior, coco coir, fox farms perlite and a small amount of Happy Frog Fruit and flower all watering was adjusted to 6.2 to 6.5.

Deficiencies were becoming apparent and aggressive by week two in one plant in particular. I chopped said plant and when I took the dirt out of the bucket it was only a third wet and the bottom third was very dry and you could see that at one time the plant had nice roots all the way down to the bottom of the bucket. When the deficiencies showed I thought two things immediately: 1) I haven't been feeding so maybe they used up the food in the mix. 2) Maybe PH is wacky with new soil blend and as a third thing I hadn't been watering to run off as I wasn't sure this soil liked being very wet.

First thing I did to the rest of the garden which looked fine so far was to water everything to run off and ph the run off which is not something I usually do (almost never) The Ph was predictably acidic, the buckets of soil averaged 5.3 - 5.2 run off. The PPM was also strangely over 2000 ppm in at least one bucket ( I didn't tds them all) From here I went to bed and gave myself some time to think about what is going on. I woke up this morning and started reading everything I could about PH.

In my ph reading, some people seemed to say that that if your ph in your run off was a 5.0 and your input water was a 6.0, that the real ph of your media was probably a 4.0 (not good if that is true) they also went on to say that if I raise the input water ph, I could then affect the ph of my soil and raise it to some degree. I tried watering with ph 8.0 water for a gallon and testing (nothing right back to 5.2 - 5.3) I then watered in two gallons of ph 7.0 water and measured the run off and still got a reading of 5.3. The only thing that changes was a progressively less tds reading that finally went down to 663ppm.

What can I do to get my run off water (ostensibly soil ph too) to end up in the zone of say 6.2- 6.4? I must also say that I am feeding now with GH Maxi at the reccomended levels per the K.I.S.S. thread as the plants didn't not appear they were going to succeed in the organic water only method with this custom soil build.

In the near future all my new plants are in coco (as I have never used it before and I like to try new stuff and I think it will play real nice with GH MaxiBloom. Any coco advice is also much appreciated.
 

tattoojim

Member
have you ever researched subcools super soil? that mix is a water only mix pretty much...it has dolimite lime which is a soil ph buffer..i use slow release pellatized lime and it works pretty well..
 
It was SubCool's recipe that made want to mix up a water only blend of soil to begin with, it was a method (water only) that I had not tried. It worked out a touch better for me (time will tell, so far not so good) to make a modifed Moonshine mix, similar concept, quite a few less boxes of good stuff.
 
The other thing that is a real kick in the nuts, is that in the past I have used ffof and sensi a/b which would balance out at 5.8 ph every time (something tells me that long before bottles had the "PH perfect" label, AN was testing the tech in their regular blend) Either way, 5.8ph would not neccesarily be the recommended PH for soil in a soil like ffof and the plants would turn out really beautiful. I was even using cold, chlorine filled water without ever giving much care about input ph, soil ph or run off ph.
 
I did use enzymes, bacteria, and fungus in my soil at transplant time when on the water only path. I agree that ACT would have been the way to go had I not become so in love with the K.I.S.S. thread when my first plant looked as if it was going to need to be fed anyway (which might have just been a result of a real acid soil ph as indicated by the run off 5.2ph )
 

Blue Socks

Member
The last bag of FFOF I bought was hot like that, even after cutting it with FFHF and perlite I was getting ~4-5 pH range runoff. I thought initially it was my water that was causing the problems so I bought an aquarium pump and an airstone and I started bubbling my tap water before I would water the plants and it seemed to help. Also I made the bubbling water into a compost tea using EWC and molasses and after a couple applications with that my plants started doing much better. Also one last thing I wouldn't expect to get an instant pH drop from "flushing" your soil, even if you pour a shit load of water in there it may take a little bit of time for the soil to fully adjust itself, I have had the same issue and I noticed that after I did the flushing I was still getting a low runoff but later testing showed that it was starting to rise up a little.
 

tattoojim

Member
ok i read over your post again....ph ing organics is really hard..like i said lime will keep your soil ph in check...recommended a flush with ph'd 5.8 water, let dry and feed1/4 strengh
 
Thank you for confirming that Blue Socks, I was praying that the soil PH would respond eventually. I love to experiment, I can't say I am enjoying watching a negative result. I do think I will like the GH Maxi better in coco coir.
 
ok i read over your post again....ph ing organics is really hard..like i said lime will keep your soil ph in check...recommended a flush with ph'd 5.8 water, let dry and feed1/4 strengh

Will do for sure. I am probably fortunate I never tried testing my run off before, I bet it would have drove me nuts.
 
Definitely glad to here that I am not the only one seeing acidic ph numbers and high tds numbers in this type of soil. I probably would have been fine with water only if the PH of the soil had the allowed the plants to use the nutes that were apparently still there.

Kick in the nuts number 2) My veg plants are just fine with the same treatment and addition of Maxi....probably even just a touch too green

One other suspicion is that I just started using Pro-Tekt and maybe causing some calcium lockout by not adding it first. Veg plants are getting the same water though and look bad ass.
 
Watering to run off has changed everything that was going wrong for me. It was interesting to watch the TDS numbers fall as I flushed PH'd water through the soil and definitely gave me a good idea as to which plants need to feed and which plants can still use just water. The change in plant health took only about 12hrs to begin showing, I am glad I found a solution before things got out of hand.
 

tattoojim

Member
Watering to run off has changed everything that was going wrong for me. It was interesting to watch the TDS numbers fall as I flushed PH'd water through the soil and definitely gave me a good idea as to which plants need to feed and which plants can still use just water. The change in plant health took only about 12hrs to begin showing, I am glad I found a solution before things got out of hand.
nice bro glad things are working out for you:dance013:
 
nice bro glad things are working out for you:dance013:

I appreciate your help in the process for sure. Even though I have grown for a long time, this experience reinforced the concept that I am never too good to go right back to the basics. I am surprised I never tried metering the run off before. Besides that hot soil batch I am testing, I am having an absolute ball trying coco for the first time.
 

tattoojim

Member
I appreciate your help in the process for sure. Even though I have grown for a long time, this experience reinforced the concept that I am never too good to go right back to the basics. I am surprised I never tried metering the run off before. Besides that hot soil batch I am testing, I am having an absolute ball trying coco for the first time.
i have been growing for a while also, but sometimes you just need some one to steer you back to the path...last week i was about to chop all 30 of my plants and start over..with some help from some peeps..im back on track, and no plants got the axe.
r/o water was my problem if you were wondering
 
RO water gets me in trouble every time I use it, even when amended with Calmag. Not sure if your problem required RO or was caused by RO like some of my problems in the past? I know some nutes virtually require the use of RO water because they were formulated for it. My next attempts with my RO water will be mixing it 50/50 with tap water.
 

tattoojim

Member
RO water gets me in trouble every time I use it, even when amended with Calmag. Not sure if your problem required RO or was caused by RO like some of my problems in the past? I know some nutes virtually require the use of RO water because they were formulated for it. My next attempts with my RO water will be mixing it 50/50 with tap water.
IMO r/o is no good...every time i try to work it in, my plants fall on there face
 

FunkBomb

Power Armor rules
Veteran
I use tap water and make sure my soil has dolomite lime. It works like a charm every time. I've never used RO water, but it seems like it can cause some serious issues.

-Funk
 

tattoojim

Member
I use tap water and make sure my soil has dolomite lime. It works like a charm every time. I've never used RO water, but it seems like it can cause some serious issues.

-Funk
if i could figure out how to post up pics again...i would show what 2 waterings of r/o done to my plants
 
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