Unexplainable CRAZY Ph Swings

OneHit

Well-Known Member
Alright, tell me how my 2 week old plant thats never been given any nutes at all has a run off of 4.5 PH water. The PH of the water going in is 6.5-7.
I use gardeners gold and promix. I PHed the run off of the soil by itself in a separate potted plant, and it came to 6.5, so not any different. Whats going on thats changing the PH so much? Ive added no nutes at all, just plain water.
 

HarvestMaster

Active Member
Definately the soil is going to be your issue. Try using some good Soiless mixture from a grow store, or go a little bit better and get some coco. Always remember when you buy these gardners special that they are for house plants and outside regular plants. Good luck
 

autotek500

Well-Known Member
Not familiar with gardeners gold.... does it contain nutrients???? some pre mix soils such as miracle gro can lower your ph ...so you have to raise ph levels in your water to compensate.....the 4.5 ph level will cause nutrient lock out ...roots can not absorb them at this level....
 

autotek500

Well-Known Member
Ok let's go at it this way...is the plant with the crazy ph showing any signs of stress??? and what type of ph tester are you using????
 

OneHit

Well-Known Member
Here are pics of 3 different plants. I just started adding fox farm grow big, and big bloom at 1/4 str. Maybe they are starved for nutes? Ive only added nutes about 2 water cycles

As for the PH tester, I got it this one http://cgi.ebay.com/Digital-pH-Swimming-Pool-Meter-Tester-Water-Garden-p3_W0QQitemZ370123142201QQcmdZViewItemQQptZHand_Tools_Gear_Equipment?hash=item370123142201&_trksid=p3286.c0.m14&_trkparms=72%3A1205|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A1|294%3A50

I test netral tap water at around 6.8 ph, so I assume its accurate.
 

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autotek500

Well-Known Member
Well you should be proud of those at only two weeks...as far as size goes..............and you are corect in your diagnosis they are starved .....the dammage thats been done won't disapear but you should see a big difference in new growth in the next few days....hope I've been a help , and keep me updated on how your babies are doing....
 

vaporking

Well-Known Member
just got this email from discount advanced ..
this is also true with all nutrients and in soil build up..
hope this helps
Da
DAN's Reservoir Succession Method
With complex nutrient combinations in the typical hydroponic reservoir these days, it is often a challenge to maintain proper pH levels. This is typically due to complex chemical interactions and breakdown that occurs over time. All growers must realize plants are really only taking in the portions of the solution that it feels it needs at the given moment in nutritional demand.

I use the all you can eat buffet example. Let's say you go to a buffet, do you or the company you are with sample each and every portion offered? I mean each and every cuisine, from the fried this to noodle that...down to the last kidney bean in the salad bar?


No, of course not! If this were the case you'd find yourself being rolled out of the restaurant by the end of your feeding.


The same occurs in complex hydroponic reservoir solutions. You are offering your plants a consistent all they can eat luxurious blend of the most premium grade nutrients known to man. They will pick and choose what they want out of the reservoir at whim.


The result?

Leftovers
What your nutrient tank consists of mid-week looks a lot different than what you started with. This in itself will cause pH drift.

When using Advanced Nutrients in hydroponics, most growers will notice pH levels typically tend to drift upward the first 2-4 days after mixing, and then pH tends to drop significantly after day 4-5.

This is due to the complexity of the 2+ program, and is largely determined by what it is your plants choose to pull out of the reservoir and when.


The best method we have found that ensures your plants are continually stimulated while balancing pH in high flux conditions is the
Reservoir Succession Method:
y 1:
Start by only making up your reservoir 2/3 with complete balanced nutrient solution. (This may not be possible with flood/drain reservoirs, drain to waste set-up)

Day 2: Balance pH

Day 3: add the additional 1/3 of fresh water, as well as the nutrients required for that 1/3 water amount.

Day 3, 4: As the first 2/3 is increasing, the additional 1/3 (water w/nutrients you just added) will bring pH back down a bit

Day 5, 6, 7: As The first 2/3 is now about to experience pH crash, the 1/3 you added will be on the rise, in turn balancing the pH overall to much more manageable levels.

This method may be a bit more feasible for people with larger reservoirs. Keep in mind this may not work for particular set-ups that require a full reservoir at all times. Those with 10 gallon or less reservoirs may not find this method practical either.

Another tip: upward pH drift can be minimized largely by diluting and heating Barricade slightly before adding to the reservoir. Place the necessary amount of Barricade in one cup of distilled water and microwave for 20-45 seconds. This will ensure the full break down of Barricade and reduce upward pH drift tendencies.

happy growing,

D.A.N.

 

autotek500

Well-Known Member
Well If he was using advanced nutrients that book you posted might be of some relavance......his main problem is a nute deficiency because the plants have had no nutrients until the last two waterings ......and another thing all nutrients are not the same ........
 

OneHit

Well-Known Member
Autotek, just once per plant, but I PHed all of them and checked it with neutral water every time. They are actually 3 and a half weeks old now, the most recent pics I took just now. What should I do about the PH though?

In the first pic with the deformed leaves, the deformed ones have dried and crumbly now. I still think I need to solve the PH some how, though I dont understand why its happening with just plain water.

Vaporking, Im using soil....
 

autotek500

Well-Known Member
Do me a favor and check the crazy one again.....as for the rest of the plants they should be ok now the are getting nutes.....the spots and curled leaves wont get better but you should see a big difference in the new growth in the next few days ....don't panic Bro..lol.. I think your gonna be ok.....I think the 4.5 reading you got was incorrect for some reason not sure why ...so check it again as soon as you can and let me know .....
 

OneHit

Well-Known Member
The crazy ones new growth doesnt look damaged, so i hope its fixed now. As for the PH, I will take another run off reading, but am going to wait till the next watering, as not to over water. But Im pretty sure that it was accurate, since I cleaned and read fresh water at normal PH.

Im still concerned about the low PH readings for ALL the plants though. I cant seem to find out why it happens
 

autotek500

Well-Known Member
You are ok for now ....check your ph levels the next time you water ....if they are still low you may have to raise the ph on you're water......let me know and we'll go from there Bro............
 

OneHit

Well-Known Member
I just checked the PH on two of my plants, the Mango and the g13 buddha, the first is 4.5ph, and the second was 4.7. Still crazy low... Anything I can do to correct this?
 

OregonMeds

Well-Known Member
You mixed two soils together, perhaps there is some interaction between what the two contain/are made of?

Leeching chemicals from those pots?

I don't know this one, I am only guessing here. This doesn't make sense.
 

autotek500

Well-Known Member
you're right it does not make sense.....what are you using to check your ph with?????? liquid tester or meter???
 

OneHit

Well-Known Member
The meter, the one I posted up on ebay was the exact one I got.

As for chems from the pots, they are all plastic pots from HD, im sure tons of people have gotten pots from there before.

As for the soil theory, Maybe.. but there are some pots were its only one type of soil. gardeners gold
 
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