Ph Rising!?!

Mvale002

Mvale002

Member
Hi,
I recently started 4 clones into a 4 bucket aeroponics system. It has a separate 15 gallon reservoir outside the room. Kept at 66 degrees. When i first put the clones in a week ago i used Advanced nutrients grow part a +b, Vodoo juice, and a little Neptune seaweed kelp emulsion. PPM was a 330 so i added more RO water to dilute it a bit. Came down to 220ppm. My problem is... My Ph that day was 6.8, i know this is high for hydro but the water they were being given prior(at the dispensary) was 7.0 and 0 nutes. So over the last week ive seen yellowing in some of the fan leaves, and curling of the some new leaves. Added more Ro water to dillute Nutes even more, got ppm down to 180. Ph was at 6.8 two days ago... So i started to add ph down slowly. Literally 20-23 drops into rez. Brought ph down to 6.7! yayy the right direction. Today though i check and my PH is 7.1! Plants show more yellowing not as much curling of leafs. I have a good Ph/PPM gauge and it is calibrated correctly. Please help Why is my ph rising? should i just keep adding small amounts of ph down every day or should i just pump out rez water and refresh it with a new batch of nutes/water?

Please need help my babies :(
Can post pics later of plants
 
C

churchhaze

Well-Known Member
Raise the ppm. Since there are 2 major scales for EC to ppm, I will just suggest to use an EC of between 1.0-1.4

Then put in enough pH down (if needed) to get pH to around 5.8.

Also, stop using the seaweed kelp emulsion.
 
Mvale002

Mvale002

Member
Thanks for the quick reply!! Will i shock the plants if i lower the ph to fast? And i heard aeroponics compared to regular hydro uses less nutes because they absorb nutrients into the roots easier because of the fine mist. Either way im down to try it, my clones are already have 4-5 nodes, should i be concerned about bringing the ppm to 500(1-1.4 ec) so fast? currently at 180ish

Will stop using the seaweed stuff, also remembered i added B-52 from Advanced nutrients as well.
 
Cold$moke

Cold$moke

Well-Known Member
Nope they are already pissed off
do like church said fix your ph first

then slowly up the nutes AFTER they recover
 
Mvale002

Mvale002

Member
Church said up the Nutes and than adjust ph. Your saying Ph first... i cant up the nutes after i lower the ph to 5.8 because that will in turn lower my ph more than i want it to i assume. Trying to keep it simple! Im just an organic soil guy trying to make it in hydro :/.
 

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Cold$moke

Cold$moke

Well-Known Member
Sorry for the confusion

I mean fix your ph first then after the plants bounce back to do what church said about the ppm

hope this explains
 
waterdawg

waterdawg

Well-Known Member
I just started running low pressure sprayers which is not true aero and I found I need to run a higher ec that with other systems I've ran. With true high pressure aero I'm sure lower nutes are required.
I run 1.4-1.5 in veg and upto 2 in flower.
 
Mvale002

Mvale002

Member
I run a low pressure in tank pump and a separate high pressure pump. The double nozzle is connected to the high pressure pump(in picture). The low pressure sprayer is a separate pump more or less a backup. But i am currently running both which is probably dumb, i wanna just use the high pressure one..
 

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Cold$moke

Cold$moke

Well-Known Member
Mvale002 said:
I run a low pressure in tank pump and a separate high pressure pump. The double nozzle is connected to the high pressure pump(in picture). The low pressure sprayer is a separate pump more or less a backup. But i am currently running both which is probably dumb, i wanna just use the high pressure one..
Click to expand...
Shit man just run your high pressure till the roots get so big that they dont hit the top no more than

Use your backup on a timer

just my 2
I like your high pressure setup
 
Tone5500

Tone5500

Well-Known Member
Dump your res and start fresh with about 300-400 ppm of your nute line and wait about 15 mins then check your ph add a few mls depends on how big your res is stir it up and wait about 15 mins go and check then keep adjusting like that tell you get it down to around 5.6 and record how many mls of ph down it took so you can reference for next time .. And just add back phed water in between red changes I usally go about four days top off then aroun 12 days make up a new res
 
Mvale002

Mvale002

Member
11/19 Update: Changed my rez water out about 80-85% of it with 370ppm and 5.5ph water. After it mixed with my old water in rez it went to 5.8ph and 345ppm. Okay good i got that all dialed in.... Wrong! 4 hours later it had crept up to a 6.4Ph 341ppm ?!? okay so i adjust again and bring it down to 5.8ph.

11/20 this morning i check about 12hours later 355ppm and 6.6ph.

currently i have ph downed to 5.9 and hope it stays there but i think itll go up. Water i made for solution was 75% filtered tap 2 stage ro i think. 45-55ppm 6.5-7ph(fluctuates i think snow runoff mountains)
other 25% was plastic gallons from Walmart it had a 7ppm 7ish ph i kinda forget it was normal. So i would assume my water isnt that "hard" right? idk im confused i don't think the swings in ph are good for my girls. uploaded some pics of sick plants and crawl space rez/pump room.
 

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Cold$moke

Cold$moke

Well-Known Member
Ph does rise naturally but yours seems to be rising really fast

whats the res temp?
and what are you using to ph down?
 
Cold$moke

Cold$moke

Well-Known Member
Nah res temps seem ok mabey
and thats what I was running for ph down as well

you said adv. Nutes right?
please list anything eles
 
Mvale002

Mvale002

Member
Sensi grow ph perfect A&B, Vodoo juice, and B-52 All from advanced nutrients. I thought the mix of the nutes would bring my ph down but i guess its not concentrated enough at this stage. It sucks cause the grow isnt at my place i can really only be ther 2 times a day max... If i was there all day id ad a drop or two every hour(ph down). I hope i can get control of this
 
Cold$moke

Cold$moke

Well-Known Member
And you are using as much as the bottle says to right?
my experience with adv. Nutes

is the 3part jungle and
the old coco formula
for base nutes

and most of their additives

with the jungle it has their "ph perfect" formula which was never far off but I still would correct as needed

mabey You just don't have enough Nutes in there?
 
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