PH Help!!!

[bingotoad]

Hey, so I just checked the PH of my run off water and it was at about 4.5, what do i do? I have PH UP, but idk how much to add. Please Help, ASAP.

bingotoad Reviewed by bingotoad on 07-26-2010. PH Help!!! Hey, so I just checked the PH of my run off water and it was at about 4.5, what do i do? I have PH UP, but idk how much to add. Please Help, ASAP. Rating: 5

[ml2242]

Hey, so I just checked the PH of my run off water and it was at about 4.5, what do i do? I have PH UP, but idk how much to add. Please Help, ASAP.

Just flush your plant with ph 8 or so water until your run off hits about 6-6.5 :jointsmile:

[sergentjunk]

Need more info. ESPECIALLY your medium. If you just

flush your plant with ph 8 or so water until your run off hits about 6-6.5

and you're in soil...great. If you're in coco, you're hosed. Coco's ph range is different from soil's.

Also, there is a reason it's nose diving. If you don't find out what that is and fix it, you're gonna be back here in two weeks asking the same thing.

[ml2242]

Need more info. ESPECIALLY your medium. If you just
and you're in soil...great. If you're in coco, you're hosed. Coco's ph range is different from soil's.

Good call, I just assumed he was using soil given the simplicity of his question

[sergentjunk]

Ooooook Bingo, just saw your journal. Being in soil, following ml2242's advice is ok. But from your last post in your journal, looks like you might have things under control. As far as the cause...it's possible you overdosed your plants and you were stacking nutes in your soil. Remember the addition of nutes=lower PH. So if you're feeding more than they're eating, and not flushing properly/regularly...then your nutes are stacking dropping your soil's PH. With that being said, make sure you sort out that PH issue before administering nutes again or you will be right back where you started.

The wrinkling on your leaves is most likely from the PH fluctuations you are observing.
Jury is still out on your brown spots, could be a CA def...not sure though. That is the first thing that comes to mind. As Marty suggested, a good CA/MG is a good thing if you're using R/O or distilled water. Just watch your nute levels. Cannabis doesn't need as much food as many think, and not nearly the amount suggested by the nute companies. Remember...they're in business. The more you use, the more you buy.

Last bit 'o advice from me: move those box fans. Cannabis likes air flow, but I have found it does not like that much blowing directly on them. Believe it or not, I have actually (for lack of a better term) "windburned" a couple of my plants from direct blowing air. Nothing major, more interesting than anything. Just wanted to give you a heads up.

[bingotoad]

Thanks serg, I flushed each plant with 9 or so PH water last night, and now the run off is about 6. Today i went to the store and got the 2nd part of the FoxFarm nutes im using, vitimin B-1, and liquid sugar. Im still watering the plants with 8ph water, and ill keep doing that until the runoff is about 6.5. Thanks for the advice.

[bigsby]

I'm not sure about the details of your soil but if you have significant imbalances going on then flushing will only provide a short term solution to your problems. Are you going to re-pot again? If so, that is the opportunity to address your issues for the long term.

[bingotoad]

my issue was that I never tested the PH of the water with the nutes in it. and when i finally did test it, it had a PH of about 4.5. And ive been using water like that for about 3 weeks now.

[sergentjunk]

That'll do it. Glad you found the problem.

[disoBAYish]

I am having the same issues now. My plants are sitting at about a PH of 4.0 - 4.5. I guess I need some PH Up huh?