Ever have a plant that seems to thrive at low PH?

WeedFreak78 · Apr 8, 2016

I have a DP blueberry in dwc that seems to love super low PH. I can set it to 5.8-6.0 and it drops to low 5.0s high 4.0s within hours. Both in veg and in flower, I'd I try to keep it above 5.6 for more than a couple days it seems to start looking deficient. If I leave it at 5.5 or less it takes off, I've seen it as low as 4.8 and left it and it looked awesome. This is my 3rd go with it, always the same. I've run it with 2 different nutrient lines, I saw the same thing.

My other strains love 5.8-6.0, and stay stable. So I know is not an issue with the meter. I've was thinking it was an issue with: fungus, bacteria, overfeeding, etc,etc, but now I'm thinking it might actually be natural? I've been keeping it low, not adjusting up too much this time, staying below 5.6, seems to be good, but I'm still in veg.

Every see anything like this?

AKGrowAreo · Apr 8, 2016

WeedFreak78 said:
I have a DP blueberry in dwc that seems to love super low PH. I can set it to 5.8-6.0 and it drops to low 5.0s high 4.0s within hours. Both in veg and in flower, I'd I try to keep it above 5.6 for more than a couple days it seems to start looking deficient. If I leave it at 5.5 or less it takes off, I've seen it as low as 4.8 and left it and it looked awesome. This is my 3rd go with it, always the same. I've run it with 2 different nutrient lines, I saw the same thing.

My other strains love 5.8-6.0, and stay stable. So I know is not an issue with the meter. I've was thinking it was an issue with: fungus, bacteria, overfeeding, etc,etc, but now I'm thinking it might actually be natural? I've been keeping it low, not adjusting up too much this time, staying below 5.6, seems to be good, but I'm still in veg.

Every see anything like this?

Very interesting...I have never heard of that, but could be possible. If it seems to thrive, then I would keep up what you're doing I guess...

Olive Drab Green · Apr 8, 2016

I'd just be wary of root rot, but I could be talking out my ass, I've never done DWC or circulatory hydroponics.

WeedFreak78 · Apr 8, 2016

Olive Drab Green said:
I'd just be wary of root rot, but I could be talking out my ass, I've never done DWC or circulatory hydroponics.

I had rot in everything when I started, this included, with the accompanying low PH, so that's what I thought. I fixed that with bennies. This one stayed low PH, so I kept fighting the rot, thinking it was still there. I went as far as doing a chlorine sterilization, and starting bennies over, didn't really care if I lost it at that point, so it was an experiment. It came back healthy, still low PH. I stopped trying to fight the rot at this point, again didn't care. I just over adjusted PH to compensate. I let it run where it wants now, mostly, I'll get it up to 5.8ish once every week, week and a half. I still look at the PH chart and worry about lock outs.

Olive Drab Green · Apr 8, 2016

Well, fuck, if it's no loss, keep going and keep us informed. I'm curious.

churchhaze · Apr 9, 2016

WeedFreak78 said:
I have a DP blueberry in dwc that seems to love super low PH. I can set it to 5.8-6.0 and it drops to low 5.0s high 4.0s within hours. Both in veg and in flower, I'd I try to keep it above 5.6 for more than a couple days it seems to start looking deficient. If I leave it at 5.5 or less it takes off, I've seen it as low as 4.8 and left it and it looked awesome. This is my 3rd go with it, always the same. I've run it with 2 different nutrient lines, I saw the same thing.

My other strains love 5.8-6.0, and stay stable. So I know is not an issue with the meter. I've was thinking it was an issue with: fungus, bacteria, overfeeding, etc,etc, but now I'm thinking it might actually be natural? I've been keeping it low, not adjusting up too much this time, staying below 5.6, seems to be good, but I'm still in veg.

Every see anything like this?

It probably wants a higher proportion of K+ than your other cuts (or Ca++ or Mg++).

If this is the case, giving it KOH would feed it the K+ it wants while bringing pH back up.

WeedFreak78 · Apr 10, 2016

churchhaze said:
It probably wants a higher proportion of K+ than your other cuts (or Ca++ or Mg++).

If this is the case, giving it KOH would feed it the K+ it wants while bringing pH back up.

I might give the KOH a try. I wasn't adding ca/Mg to my RO initially and thought it may have been that, started adding it figuring the ca/Mg might buffer the PH. No major difference, plants did looks marginally better, overall. Idk how long I'm keeping this plant around, I've had if for a year plus now and I'm not overly impressed with the final product.

Rob Roy · Apr 12, 2016

Blueberries (the real berry kind, not the cannabis strain kind) thrive in a lower ph acidic soil.

A wild and speculative theory....is any component that makes blueberry cannabis strains and blueberry (the berry) smell similar in any way present enough to give both a liking for low ph ?

PerfectGrower · Apr 12, 2016

if the pH is low, you better hope the nutrient company you use has the proper chelated elements. At low pH, elements will begin to lock out...it's surely not ideal to be below 5.5

Ever have a plant that seems to thrive at low PH?

WeedFreak78

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AKGrowAreo

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Olive Drab Green

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WeedFreak78

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Olive Drab Green

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churchhaze

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WeedFreak78

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Rob Roy

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PerfectGrower

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