Ph problem.

Bukvičák

Well-Known Member
So basically what are you suggesting for me to do? Lower the amount of nutrients? I also have calibrated my meter recently.
Basically I know nothing about values your want in hydro, so no advice. Just pointing on your tools, that you believe something which is not actually true. So you might be catching ghost where there is none. I run half dose of same nuts in SOIL and its on the edge feeding once per 2weeks. I am just not helpful anymore so I am out. Good luck!
 

70's natureboy

Well-Known Member
Your tap water sounds fine and 1 EC is where I try to run, I'd say your nutes just aren't PH stable. I would try something else.
 

Bukvičák

Well-Known Member
Your tap water sounds fine and 1 EC is where I try to run, I'd say your nutes just aren't PH stable. I would try something else.
I know that soil and hydro are two different things. I use same nutrients and need to say that these nutrients are not crashing pH like others. In full strenght they lower pH from 7,8 to 6,6 in EC around 2,0 with my tap 0,55. With other brands I was observing pH around 5,0 at full strenght @2,1 EC. There must be something else going on there. Hes for sure not on 1,08 EC thats one thing. Maybe low Q pebbles...
 

myke

Well-Known Member
IME ph dropping like that is root issues but you have such a small res so not sure.
What happens during a flush? Straight tap water does the ph drop?
 
IME ph dropping like that is root issues but you have such a small res so not sure.
What happens during a flush? Straight tap water does the ph drop?
Is 50 litres small? Pretty much nothing happens during a flush, i keep the flush solution for 24 hours and then change it for nutes.
With only 10 litres in the system this will always be a problem.
There has never been only ten litres, and never will be.
 
I know that soil and hydro are two different things. I use same nutrients and need to say that these nutrients are not crashing pH like others. In full strenght they lower pH from 7,8 to 6,6 in EC around 2,0 with my tap 0,55. With other brands I was observing pH around 5,0 at full strenght @2,1 EC. There must be something else going on there. Hes for sure not on 1,08 EC thats one thing. Maybe low Q pebbles...
Trust me, our water is 0,15ec. I dont know why you make an issue out of it, its a common thing in our country, clean water. Or maybe you know something i dont?
 

Bukvičák

Well-Known Member
Trust me, our water is 0,15ec. I dont know why you make an issue out of it, its a common thing in our country, clean water. Or maybe you know something i dont?
I do not deny your nice EC of tap (seems weird low but OK) but your solution is not at 1,08 EC at full dose! My tap is 0,55 and with that same nuts at full strenght is around 2,0 EC! With your water it is around 1,6 not 1,08 thats what I try to show you. Based on this if you are measuring your plain tap with same instrument as your nut solution than your tap is also not 0,15 since your measurements are off.
 

myke

Well-Known Member
Is 50 litres small? Pretty much nothing happens during a flush, i keep the flush solution for 24 hours and then change it for nutes.

There has never been only ten litres, and never will be.
I miss read your post,10 litres was mentioned.50 litres is still small but probably not your issue.If pH doesn't crash on a flush then its something with your nutes.If it was a root issue then it would crash with plain un ph'ed water also.
 

myke

Well-Known Member
So your roots are coming out of your pots and lining your tray,this is when the ph started to crash?When you flush do you spray or completely fill this area with water a few times?Also do you check your flush water with EC pen to know all nutes are out?

Ph crashing is normally something in the roots/system,
 

Hollatchaboy

Well-Known Member
Hi guys, im currently on flowering day 36, and for the last few weeks i have had a problem with my reservoir water ph, it crashes down to 5'ish in a day after changing the waters, as i do weekly.

Im using the terra aquatica tripart nutrients with tap water, 8-16-24.

My ec sits comfortably at 1.08, but if i try to raise the ph with ph up solution, the ec starts rising so it seems the nutrient flow is stopped.

The system is hydroponic with clay pebbles, watering happens few times a day.

Also the leaves are a bit dark maybe, with a little clawing occasionally.

Oh, and the roots seem fine. There are just a metric shit ton of them, they have also taken some space from the reservoir.
You're in hydro, but Is it dwc, or dtw? I only ask because you said watering happens a few times a day so I'm guessing the roots aren't sitting in water 24/7.
 
You're in hydro, but Is it dwc, or dtw? I only ask because you said watering happens a few times a day so I'm guessing the roots aren't sitting in water 24/7.
Pots with pebbles and recirculating water. Some of the roots are sitting in water 24/7 as they breached out of the pots.
 
So your roots are coming out of your pots and lining your tray,this is when the ph started to crash?When you flush do you spray or completely fill this area with water a few times?Also do you check your flush water with EC pen to know all nutes are out?

Ph crashing is normally something in the roots/system,
Actually the ph crash started few weeks into flowering stage, the roots have been in the res for long, they reached the res in about a month from planting. And yes, i check my ph and ec daily, sometimes few times a day.
Edit: realized you werent asking that. No, i do not check the flush water for nutes to be out. Should i?
 

myke

Well-Known Member
Actually the ph crash started few weeks into flowering stage, the roots have been in the res for long, they reached the res in about a month from planting. And yes, i check my ph and ec daily, sometimes few times a day.
Edit: realized you werent asking that. No, i do not check the flush water for nutes to be out. Should i?
Well your EC should drop daily,means plants are eating.This makes the ph go up.
Yes flush the shit out of them,do it drain to waste.Hand pour water and pump it out to waste.
I run rdwc i fill flush 3 times in 24 hrs until my EC is close to tap.
 
Well your EC should drop daily,means plants are eating.This makes the ph go up.
Yes flush the shit out of them,do it drain to waste.Hand pour water and pump it out to waste.
I run rdwc i fill flush 3 times in 24 hrs until my EC is close to tap.
Ec has dropped daily, in veg it resulted the ph to go up, when i switched to flowering, ec still drops but it makes the ph to go down. I asked around and some people said that its normal, but not to this extent. When i try to adjust the ph with ph up, the ec stops dropping and starts to go up. So i guess the plants stop eating if i try to adjust it manually. Am i even close with these thoughts?
 

myke

Well-Known Member
Ec has dropped daily, in veg it resulted the ph to go up, when i switched to flowering, ec still drops but it makes the ph to go down. I asked around and some people said that its normal, but not to this extent. When i try to adjust the ph with ph up, the ec stops dropping and starts to go up. So i guess the plants stop eating if i try to adjust it manually. Am i even close with these thoughts?
How much ph up you using? i think 1ml/l =1 ppm
Perhaps something in your bloom nutes is doing this?
 
How much ph up you using? i think 1ml/l =1 ppm
Perhaps something in your bloom nutes is doing this?
When i first used it, my res had about 40l in it, i yeeted some 10ml in there, it fixed it for the night but the next day it was red again.
 
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