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20 days from seed in 20 gallons RDWC ph rises while ppm constant pls help
- Thread starter erwingruber
- Start date
erwingruber
Member
Unfortunately lowering the water level didn't work , I lower the water level and readjust the ph to 5,8 in 8 hours time updrift to 6,3 .
I think that my nutrient solution like's to balance @ 6,3 and i will let it drift another 10 hours to see what happens .
I believe now that the ph updrift is from week nutes or from the consumption of Nitrogen as morrisgreenberg state some post's before.
If the ph stays @ 6,3 i will add some nutes to lower it each time until reaching 800 ppm(.7) from 530(.7) that i am right now.
If i did not make it to stabilize in the next 2-3 days i will make a water change and switch to low light GMB 0-5-10 Lucas Formula
endif
(i hate my ph readings)
I think that my nutrient solution like's to balance @ 6,3 and i will let it drift another 10 hours to see what happens .
I believe now that the ph updrift is from week nutes or from the consumption of Nitrogen as morrisgreenberg state some post's before.
If the ph stays @ 6,3 i will add some nutes to lower it each time until reaching 800 ppm(.7) from 530(.7) that i am right now.
If i did not make it to stabilize in the next 2-3 days i will make a water change and switch to low light GMB 0-5-10 Lucas Formula
endif
(i hate my ph readings)
oldone
Member
Amen brother. I dont know whether to trust mine or not...
How do your plants look?
I'm growing in NFT for the 1st time i adjust my PH down to 5.8 within a day or so it rises to 6.2 and keeps on rising so when i top up the res i PH the top up (approx 6L) down to about 4.5 then add to the res (20L) to bring it back down within range when i 1st noticed the PH rise i was a little paranoid so i asked the guy in the hydro shop the answer was if the PH rises the plants are sucking up the nutes and it's normal and if the PH lowers it because of disease but my girls seem to be loving it and growing FAST!
i think you did the right thing by lowering your res as this will encourage your roots to grow down and not become lazy, as some 1 already stated that its not important to lower the res, this may well be good if you have a fully developed root system but not good when your trying to establish 1
my only other theory for your rising ph is that i assume you are using tap water as there is no mention of your water source, if this is the case you need to let the water become stable over a 24 hour period before adding to your plants, this is not always the case for advanced growers who can react quickly to any changes that occur but as a begginer its better to stablize your nutes before adding to your plants,
let me explain in more detail the concept...
when you 1st mix up a res and ph down to 5.6 you will think that all is well however the nutrients have not had enough time to mix thorughly in the water so if you let it stand for 30 mins then check again you will see that your ph has risen so you have to ph back down, eventually after repeating these steps your res will reamin stable, it may take longer with a bigger res to achieve this
hope this helps
my only other theory for your rising ph is that i assume you are using tap water as there is no mention of your water source, if this is the case you need to let the water become stable over a 24 hour period before adding to your plants, this is not always the case for advanced growers who can react quickly to any changes that occur but as a begginer its better to stablize your nutes before adding to your plants,
let me explain in more detail the concept...
when you 1st mix up a res and ph down to 5.6 you will think that all is well however the nutrients have not had enough time to mix thorughly in the water so if you let it stand for 30 mins then check again you will see that your ph has risen so you have to ph back down, eventually after repeating these steps your res will reamin stable, it may take longer with a bigger res to achieve this
hope this helps
erwingruber
Member
@ oldone
My plant's look fine ... .until now
i have trust to my ppm meter i do
not have ANY trust to my skills
and to my water
@ #eyes
I think that the words from the hydro store is based on the rule
EC up, pH down is too rich
EC down, pH up is too lean
EC flat, pH flat is balanced BUT
but this is not my case i have ph up and ppm stable
@ skotty
WOW men i just pick a look to your sig,s links i saw a very nice
setup ... and i have a lot of reading ahead with these.
From my readings here and there i think that lowering the
water level is good for me now and i take as bonus that
i exclude one reason for my ph updriftings
As for my water it is R/O.
I was reading somewhere the Useless's GH 3 part feeding schedule
and i think that the truth is between light nutrient solution and
the time that the tank need to be stable.For my 80 Litre tank i use
maybe no more of 5 ml GH's ph down.
So what do you think adding some nutes to strenth my nutrient solution
and lower the ph with them giving the tank sometime to stabilize.
My plant's look fine ... .until now
i have trust to my ppm meter i do
not have ANY trust to my skills
and to my water
@ #eyes
I think that the words from the hydro store is based on the rule
EC up, pH down is too rich
EC down, pH up is too lean
EC flat, pH flat is balanced BUT
but this is not my case i have ph up and ppm stable
@ skotty
WOW men i just pick a look to your sig,s links i saw a very nice
setup ... and i have a lot of reading ahead with these.
From my readings here and there i think that lowering the
water level is good for me now and i take as bonus that
i exclude one reason for my ph updriftings
As for my water it is R/O.
I was reading somewhere the Useless's GH 3 part feeding schedule
and i think that the truth is between light nutrient solution and
the time that the tank need to be stable.For my 80 Litre tank i use
maybe no more of 5 ml GH's ph down.
So what do you think adding some nutes to strenth my nutrient solution
and lower the ph with them giving the tank sometime to stabilize.
erwingruber
Member
After 12 more hours ph drifts from 6,3 to 6,4 so i conclude that it will like
to stabilize somewhere near 6,5 but the problem is i do not like it there.
So in my adventure chasing my ph updrifts i add 10 ml of each GMB and i have a solution
@ppm 690(.7) and ph drops to 6,2 i add 1,2 ml of ph down and bring it back to 5,8.
I will let it bubble for 10 - 12 hours and i am going to see what happens , i hope my ladies
can handle the ppm raising . if i cannot make it stabilize maybe tommorow or the day after
i will switch to Lucas or Useless formula , oh and i change my floro with 400 HPS
Take a look of the girls too , some light yellow discoloration and some leaves curling a little
bit but nothing serious.i miss my soil runs , i switch to hydro for better managment but it is a pain.
to stabilize somewhere near 6,5 but the problem is i do not like it there.
So in my adventure chasing my ph updrifts i add 10 ml of each GMB and i have a solution
@ppm 690(.7) and ph drops to 6,2 i add 1,2 ml of ph down and bring it back to 5,8.
I will let it bubble for 10 - 12 hours and i am going to see what happens , i hope my ladies
can handle the ppm raising . if i cannot make it stabilize maybe tommorow or the day after
i will switch to Lucas or Useless formula , oh and i change my floro with 400 HPS
Take a look of the girls too , some light yellow discoloration and some leaves curling a little
bit but nothing serious.i miss my soil runs , i switch to hydro for better managment but it is a pain.
erwingruber
Member
double post deleted
If you have not treated your hydroton properly then it may be the case of rising Ph if your hydroton hits the water.
If you have treated it properly it should not effect the Ph like in your case.
I believe you have treated your hydorton properly so it's not the case. It's something else than the hydroton then?
Douple check the water temps and light leaks.
Start with fresh nutes.. Without any 'formula', like you were about to dump the solution next week. Slowly building it up.
Maybe even flush a day or half.
I had once a situation where Ph just kept rising and rising no matter what solution I tried and I never managed to get it in control. The plant was in flower and prematured, finished early.
It was the temps and light, I think, cant be sure for i never got it under control.
Good Luck
BTW
So you lowered the water level below the netpots and Ph swings are still present. Root are below the netpot hitting the water?
If theres no gap now is the water level suddenly above the roots? Root would search water from upwards? No. Theres no sense leaving a gap there. That is not raising your Ph.
But you choose your water level.
Good Luck again
If you have treated it properly it should not effect the Ph like in your case.
I believe you have treated your hydorton properly so it's not the case. It's something else than the hydroton then?
Douple check the water temps and light leaks.
Start with fresh nutes.. Without any 'formula', like you were about to dump the solution next week. Slowly building it up.
Maybe even flush a day or half.
I had once a situation where Ph just kept rising and rising no matter what solution I tried and I never managed to get it in control. The plant was in flower and prematured, finished early.
It was the temps and light, I think, cant be sure for i never got it under control.
Good Luck
BTW
So you lowered the water level below the netpots and Ph swings are still present. Root are below the netpot hitting the water?
If theres no gap now is the water level suddenly above the roots? Root would search water from upwards? No. Theres no sense leaving a gap there. That is not raising your Ph.
But you choose your water level.
Good Luck again
C
cyberwax
After 12 more hours ph drifts from 6,3 to 6,4 so i conclude that it will like
to stabilize somewhere near 6,5 but the problem is i do not like it there.
So in my adventure chasing my ph updrifts i add 10 ml of each GMB and i have a solution
@ppm 690(.7) and ph drops to 6,2 i add 1,2 ml of ph down and bring it back to 5,8.
I will let it bubble for 10 - 12 hours and i am going to see what happens , i hope my ladies
can handle the ppm raising . if i cannot make it stabilize maybe tommorow or the day after
i will switch to Lucas or Useless formula , oh and i change my floro with 400 HPS
Take a look of the girls too , some light yellow discoloration and some leaves curling a little
bit but nothing serious.i miss my soil runs , i switch to hydro for better managment but it is a pain.
I hear that, but hydro is so much more rewarding when it works, i think i've used 5 years now to finetune my hydro, and occationally i just have to put em in soil to save em. However the last six months have gone without any devastating incidents and in the process i think i've learned most of the basics, having sailed through most of the rough seas, like a moth; only towards the problems. (flapping wing sounds)
You plants look good tho, fresh green color/colour, i do see the upwards canoeing, its releated to the new 400w or is this a previous issue? Either way ur gonna get a good batch.
How long do you leave your tapwater before you apply it to the res?
erwingruber
Member
R u telling me that i need 5 years minus 20 days to dial my Hydro ...
I am joking , i hope that @ the end of the week hohow i will manage my ph.
No the canoying was there before the switching to 400HPS .
Which is your recipe of nutrients ?
...I am joking , i hope that @ the end of the week hohow i will manage my ph.
No the canoying was there before the switching to 400HPS .
Which is your recipe of nutrients ?
C
cyberwax
R u telling me that i need 5 years minus 20 days to dial my Hydro
I am joking , i hope that @ the end of the week hohow i will manage my ph.
No the canoying was there before the switching to 400HPS .
Which is your recipe of nutrients ?
lol no thats not what im saying, im saying its taken me that long to visit all the problems possible, almost. You can do it right and not know why, and you can do it wrong and know why, see?
I use a mix of canadianXpress(1 part nute) and advanced hydroponics of holland(3 parter, using only the micro for addon as im trying to use up my xpress nutes wich contain too little micro for my strain), however next time i buy nutes it'l be the 3 parter only, not sure what brand but im pretty happy with Advanced hydroponics of holland. I would suggest sticking to one brand and get to know it, most 3 parters out there that are common brands are adequate. However whatever brand i use i always add some cal/mag, or im tempting yellowness after 2 weeks in flower.
erwingruber
Member
Hello icmagers , I did not manage to control my ph updrifts and i will change my nutrient solution
hoping that i have wrong recipe and weak solution as Japanfreakier mention in previous post's
I hope that a bit high res temps and heavily oxygeneted solution is not the problem as toohighmf mention cause
then i will have serious problems cause i cannot drop a lot my water temps and in high water temps roots
need heavy oxygenation to survive.
Tommorow i will mix 3-2-1 GMB going for 1,2 EC (.7 @ 850 ppm) until i buy some more bottles to follow a trusted recipe.
Feel free to follow my ph updrift adventure to my grow log
https://www.icmag.com/ic/showthread.php?t=189882
Thnks everyone for helping around !
hoping that i have wrong recipe and weak solution as Japanfreakier mention in previous post's
I hope that a bit high res temps and heavily oxygeneted solution is not the problem as toohighmf mention cause
then i will have serious problems cause i cannot drop a lot my water temps and in high water temps roots
need heavy oxygenation to survive.
Tommorow i will mix 3-2-1 GMB going for 1,2 EC (.7 @ 850 ppm) until i buy some more bottles to follow a trusted recipe.
Feel free to follow my ph updrift adventure to my grow log
https://www.icmag.com/ic/showthread.php?t=189882
Thnks everyone for helping around !
C
cyberwax
u forgot my bucket cooling solution
erwingruber
Member
@ cyberwax
No it din't forgot i found something ready @ the aquarium store but i have hard time to bring
fresh air from outside ,i think that try to cool with hot air from inside my closet is worthless.
My closet is from wood as you can see in my sig's first post's and i must drill holes , exept this i must drill holes to my main reservoir so the air find ways to escape and i must found first where my water level going to be.
It is in my do to list thanks !
No it din't forgot i found something ready @ the aquarium store but i have hard time to bring
fresh air from outside ,i think that try to cool with hot air from inside my closet is worthless.
My closet is from wood as you can see in my sig's first post's and i must drill holes , exept this i must drill holes to my main reservoir so the air find ways to escape and i must found first where my water level going to be.
It is in my do to list
thanks !A higher level of nutrients should make the ph swing smaller, although I wouldn't go any stronger until the plants are bigger. Some ph drift is ok. I usually set it around 5.4 and adjust back down once it gets to 5.9.
With a system that has fairly fresh water and low nutrients, this can happen in a day or 2. With water that has been in the system a week it usually takes a few days. It can take awhile for things to balance out. Once you get used to it you won't have to monitor it as closely. In veg I know it will rise a bit over a few days so I just give it a few ml of ph down without testing. I know it will end up somewhere near where it should be. In flowering I check every day and ph down every few days as needed, and try to be more precise in the measuring.
With a system that has fairly fresh water and low nutrients, this can happen in a day or 2. With water that has been in the system a week it usually takes a few days. It can take awhile for things to balance out. Once you get used to it you won't have to monitor it as closely. In veg I know it will rise a bit over a few days so I just give it a few ml of ph down without testing. I know it will end up somewhere near where it should be. In flowering I check every day and ph down every few days as needed, and try to be more precise in the measuring.
erwingruber
Member
Hello all ,
@gardenbug
I think that this is my case too , and you know what are you talking about maybe my solution needs 2-3 days to balance .
As for the EC levels of my solution i make a water change with 8-4-2 per gallon @ 1,6 EC a bit high , but girls seem to like it.
The ph updrifting slow down but do not disapear while in other growers the ph levels stay more constand and this confused me. Anyway you are all welcome to find more details in the grow log of my sig and the last updates from the water change in the second page here
https://www.icmag.com/ic/showthread.php?t=189882&page=2
Thnks all for helping me out.
@gardenbug
I think that this is my case too , and you know what are you talking about maybe my solution needs 2-3 days to balance .
As for the EC levels of my solution i make a water change with 8-4-2 per gallon @ 1,6 EC a bit high , but girls seem to like it.
The ph updrifting slow down but do not disapear while in other growers the ph levels stay more constand and this confused me. Anyway you are all welcome to find more details in the grow log of my sig and the last updates from the water change in the second page here
https://www.icmag.com/ic/showthread.php?t=189882&page=2
Thnks all for helping me out.
hi!
with 12-8-4 i have 1,4-1,6 ec..how you have 1,6 with 8-4-2?????
and why you dont have stable ph?? with the RO my ph is stable for
days!
and your girls are happy nothing else matters!
cheers!
erwingruber
Member
@ tjo
Hello my friend , this is where i am confused !!!!!!
My ppm meter counts my fresh R/O @ ppm 0-5 and ph @ 6,5-6,7
i mix 8-4-2 per gallon and my ppm meter give 1,6 EC and ph @ 5,2 after
i let it buble for 15 hours and EC was 1,6 and ph @ 6,1 after 30 more
hours ph was @ 6,3 slowly updrift.
I was thinking maybe is something wrong with my ph meter .... ok
Something wrong with my EC meter too ?????
I am start thinking that ph raises cause the heavy oxygenation maybe
i am bubling my main reservoir (12 gallons) with (4)four 5 inch airstones and
more than 16/lt per minute of air (960lt/hour).
Yes my girls are happy (except some slight Mg def ) but i have very hard times trying to understand
why all this happen and why i leave from my trusted soil runs.
Anyway i will keep trying ..
Hello my friend , this is where i am confused !!!!!!
My ppm meter counts my fresh R/O @ ppm 0-5 and ph @ 6,5-6,7
i mix 8-4-2 per gallon and my ppm meter give 1,6 EC and ph @ 5,2 after
i let it buble for 15 hours and EC was 1,6 and ph @ 6,1 after 30 more
hours ph was @ 6,3 slowly updrift.
I was thinking maybe is something wrong with my ph meter .... ok
Something wrong with my EC meter too ?????
I am start thinking that ph raises cause the heavy oxygenation maybe
i am bubling my main reservoir (12 gallons) with (4)four 5 inch airstones and
more than 16/lt per minute of air (960lt/hour).
Yes my girls are happy (except some slight Mg def ) but i have very hard times trying to understand
why all this happen and why i leave from my trusted soil runs.
Anyway i will keep trying ..
