PH changing in hydro to rapidly.

MeJuana

MeJuana

Well-Known Member
If you do raise PPM I would do it a little bit with rockwool cubes not a huge jump but that's me. But yeah that's what I meant earlier if you raise something like P K slightly and the pH spike slows then you nailed it.

STR8QU4D5 said:
Nice idea. Ill give it a try. Why would I PH to 10, to then just PH to 5.5 in my case. Isn't using PH UP and PH DOWN at the same time not good to do?
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It's fine to use them together just mix well before using the other one and by the way it wasn't my idea I stole it. I will also link below a buffering system by a chemist you could use. You said you pretreated the rockwool.. You used vinegar like my chemist friend describes?

Crazy pH swings can be caused by your media
http://scienceinhydroponics.com/2010/05/crazy-ph-swings-how-media-and-bacteria-affect-ph-in-hydroponics.html

Here's a buffering system by chemist/botanist Daniel Fernandez:
http://scienceinhydroponics.com/2009/02/my-ph-balancing-system-for-hydroponic-growing.html

I made a list of links to Daniel Fernandez's blog almost 6 years ago on my second post is a set of links specifically regarding pH in hydro
https://www.rollitup.org/t/hydrobuddy-free-hydroponic-nute-calc-by-chem-scientist-botanist-mix-own-nutrients.368514/
 
Alaric

Alaric

Well-Known Member
MeJuana said:
If you do raise PPM I would do it a little bit with rockwool cubes not a huge jump but that's me. But yeah that's what I meant earlier if you raise something like P K slightly and the pH spike slows then you nailed it.


It's fine to use them together just mix well before using the other one and by the way it wasn't my idea I stole it. I will also link below a buffering system by a chemist you could use. You said you pretreated the rockwool.. You used vinegar like my chemist friend describes?

Crazy pH swings can be caused by your media
http://scienceinhydroponics.com/2010/05/crazy-ph-swings-how-media-and-bacteria-affect-ph-in-hydroponics.html

Here's a buffering system by chemist/botanist Daniel Fernandez:
http://scienceinhydroponics.com/2009/02/my-ph-balancing-system-for-hydroponic-growing.html

I made a list of links to Daniel Fernandez's blog almost 6 years ago on my second post is a set of links specifically regarding pH in hydro
https://www.rollitup.org/t/hydrobuddy-free-hydroponic-nute-calc-by-chem-scientist-botanist-mix-own-nutrients.368514/
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I read that first link you referenced------thanks.

Something I disagree with though:

"How do you end this problem ? The easiest way to end this problem is to pretreat your media before starting your crop."

My preference is to eliminate all medium (except starting seed).

2x2.jpg bareroots.jpg

Something to think about,

A~~~
 
S

STR8QU4D5

Active Member
MeJuana said:
If you do raise PPM I would do it a little bit with rockwool cubes not a huge jump but that's me. But yeah that's what I meant earlier if you raise something like P K slightly and the pH spike slows then you nailed it.


It's fine to use them together just mix well before using the other one and by the way it wasn't my idea I stole it. I will also link below a buffering system by a chemist you could use. You said you pretreated the rockwool.. You used vinegar like my chemist friend describes?

Crazy pH swings can be caused by your media
http://scienceinhydroponics.com/2010/05/crazy-ph-swings-how-media-and-bacteria-affect-ph-in-hydroponics.html

Here's a buffering system by chemist/botanist Daniel Fernandez:
http://scienceinhydroponics.com/2009/02/my-ph-balancing-system-for-hydroponic-growing.html

I made a list of links to Daniel Fernandez's blog almost 6 years ago on my second post is a set of links specifically regarding pH in hydro
https://www.rollitup.org/t/hydrobuddy-free-hydroponic-nute-calc-by-chem-scientist-botanist-mix-own-nutrients.368514/
Click to expand...
Thanks for the articles. Yeah, Ive treated the rockwool very well beforehand. So I doubt its the issue. Im beginning to think the bubbler is increasing the PH and Ive been told that it definitely can because of the reaction its causes when its puts oxygen into the water. Im thinking of getting some hydroguard and mammoth P. This should help to stabilize things more through the use of healthy bacteria.
 
S

STR8QU4D5

Active Member
Alaric said:
I read that first link you referenced------thanks.

Something I disagree with though:

"How do you end this problem ? The easiest way to end this problem is to pretreat your media before starting your crop."

My preference is to eliminate all medium (except starting seed).

View attachment 3706894 View attachment 3706895

Something to think about,

A~~~
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To be honest, the plants in those pictures do not look very healthy. They are showing many signs of deficiencies and the roots look like they are rotting.
 
coreywebster

coreywebster

Well-Known Member
Is that one of those systems that grows 360 degrees? Do they rotate? Never seen one other than in magazines. Sweeeeet!! Its like a space station!
 
Alaric

Alaric

Well-Known Member
coreywebster said:
Is that one of those systems that grows 360 degrees? Do they rotate? Never seen one other than in magazines. Sweeeeet!! Its like a space station!
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No, it's not one of those rotating wheels.

Yes, the plants are grown to form a canopy circle around the lights. Looks like a tunnel of green with lights in the center moving back and forth. The goal is to get as much canopy exposed to the same light intensity as possible / practical.

Much better description in the link in my sig.

A~~~
 
Budley Doright

Budley Doright

Well-Known Member
STR8QU4D5 said:
Thanks for the articles. Yeah, Ive treated the rockwool very well beforehand. So I doubt its the issue. Im beginning to think the bubbler is increasing the PH and Ive been told that it definitely can because of the reaction its causes when its puts oxygen into the water. Im thinking of getting some hydroguard and mammoth P. This should help to stabilize things more through the use of healthy bacteria.
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I used to run airstones and switched to flooming, my PH is pretty stable now. I run chilled water and hydroguard, the root mat in my top tray was 4" thick and pure white after that. To floom I just have a pump shooting water against the lid of the upper Res.
 
S

STR8QU4D5

Active Member
Budley Doright said:
I used to run airstones and switched to flooming, my PH is pretty stable now. I run chilled water and hydroguard, the root mat in my top tray was 4" thick and pure white after that. To floom I just have a pump shooting water against the lid of the upper Res.
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Right on, so you, as well, agree that the bubblers change PH?
 
J

JungleTime

Well-Known Member
STR8QU4D5 said:
I knew it! I suspected this! Im glad you brought it up, I couldn't find anything on this. Can you show me an example of alternatives please? Thanks in advance!
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Well I think I can explain why air stones increase ph when aerating water. When you use a air stone air is pasted through the stone which also makes water pass through it. Air stones are made of stones and they high inph. This is more known in the fish tank community as fish waste/algae clogs the airstone.

But yep as vegas said you can use a submersible pump. You could possibly even use a venturi set up which gives you the best of both worlds. No air stone, you move tons more water and also aerate it. All eco pumps come with venturi attachment or you can just drill a lil hole in any tube and stick some airline in it. If you want some more air moving through you can even throw a airpump on the airline which aerates the fuck outta it

https://www.thcfarmer.com/community/threads/diy-venturi-air-pump-from-ecoplus-396-water-pump.23732/
 
S

STR8QU4D5

Active Member
JungleTime said:
Well I think I can explain why air stones increase ph when aerating water. When you use a air stone air is pasted through the stone which also makes water pass through it. Air stones are made of stones and they high inph. This is more known in the fish tank community as fish waste/algae clogs the airstone.

But yep as vegas said you can use a submersible pump. You could possibly even use a venturi set up which gives you the best of both worlds. No air stone, you move tons more water and also aerate it. All eco pumps come with venturi attachment or you can just drill a lil hole in any tube and stick some airline in it. If you want some more air moving through you can even throw a airpump on the airline which aerates the fuck outta it

https://www.thcfarmer.com/community/threads/diy-venturi-air-pump-from-ecoplus-396-water-pump.23732/
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sweet, thanks! I have a eco pump, I should have what your talking about.
 
Budley Doright

Budley Doright

Well-Known Member
STR8QU4D5 said:
Right on, so you, as well, agree that the bubblers change PH?
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Well I did read about PH fluctuations and that it may have been caused by drawing in the air, I stopped and my PH is stable. Did the removal of the stones help? I'm not sure what did it but just one thing I did that seemed to have helped. My grows have been getting better over time and it's just one of many things I've done to tweak things. The biggest change for better was chilled water and possibly hydroguard.
 
S

STR8QU4D5

Active Member
Budley Doright said:
Well I did read about PH fluctuations and that it may have been caused by drawing in the air, I stopped and my PH is stable. Did the removal of the stones help? I'm not sure what did it but just one thing I did that seemed to have helped. My grows have been getting better over time and it's just one of many things I've done to tweak things. The biggest change for better was chilled water and possibly hydroguard.
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Yeah, im going to set up a Venturi today and get rid of the air stones. Ive read a ton of quality reviews on hydroguard and im convinced it works well, but I have to order it from the states because they don't sell it in Canada. Im also ordering Mammoth P because it also has crazy good technology.
 
Budley Doright

Budley Doright

Well-Known Member
STR8QU4D5 said:
Yeah, im going to set up a Venturi today and get rid of the air stones. Ive read a ton of quality reviews on hydroguard and im convinced it works well, but I have to order it from the states because they don't sell it in Canada. Im also ordering Mammoth P because it also has crazy good technology.
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I get mine from Amazon and the only bad thing is price :(. Never heard of mammoth p, I'll have a look.
 
Budley Doright

Budley Doright

Well-Known Member
image.jpeg I started to really concentrate on the roots after getting rot. The girls always struggled, slightly discoloured roots, clumping, and ph drift. These are roots from cuttings 23 days old after switching to straight F&D again, chilling the water, and (again not sure if it does anything because I've not stopped using it) hydroguard. My water is from a well that has an EC of 250 and a PH of 7.5. I also use vitanimo, and a two part liquid nutrient that is made locally and cheap. Not sure if the vitanimo works either lol. What I do know is the leafs were always quite blotchy ( rust spots) and always showing signs of mag and calcium deficiency (I think lol). Now my plants stay green till chop, actually maybe too green :(. I have stopped the vitanimo about two to three weeks before chop just to see if it's actually hindering bud development.
 
S

STR8QU4D5

Active Member
Budley Doright said:
View attachment 3708283 I started to really concentrate on the roots after getting rot. The girls always struggled, slightly discoloured roots, clumping, and ph drift. These are roots from cuttings 23 days old after switching to straight F&D again, chilling the water, and (again not sure if it does anything because I've not stopped using it) hydroguard. My water is from a well that has an EC of 250 and a PH of 7.5. I also use vitanimo, and a two part liquid nutrient that is made locally and cheap. Not sure if the vitanimo works either lol. What I do know is the leafs were always quite blotchy ( rust spots) and always showing signs of mag and calcium deficiency (I think lol). Now my plants stay green till chop, actually maybe too green :(. I have stopped the vitanimo about two to three weeks before chop just to see if it's actually hindering bud development.
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Right on, those are REALLY healthy roots you got there. So you use well water? I switched to RO because of well water too. What is F&D? Does that stand for Flood and Drain? What kind of yields are you getting when using the well water?
 
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