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Old 10-11-2008, 04:27 AM #1
Syndicate
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Anyone having PH problems in Pro-Mix?

I was wondering if amongst the Pro-Mix users if they had noticed more PH related issues of late.I have used Pro-mix for years and found it to hold a pretty steady PH for the most part, but lately have had quite a few problems with multiple nute def, checked soil PH and sure enough it had fallen to 4.8, maybe they are adding less/lesser quality of lime these days or maybe it's just me who knows.I only mention this cause I have also noticed an increase of PH problems being posted about in the infirmary and quite often the poster says he is using Pro-Mix, just thought it was worth throwing out there.

I am in week 6 of 10 of flower, Dolomite would have been too slow acting IMO and I needed a quick fix so last night resorted to using 6ml of hydrated lime /gal water, the water was very high PH and maxed my meter out at 10.5 I can only hope it stabilized a bit in the soil.On the other hand the plants probably would only have gotten worse had I done nothing-Just hope I didn't do wrong and burn the hell outta them...lol.
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Old 10-11-2008, 04:34 AM #2
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From talking to the dude who owns a garden center store yesterday.He saved me from buying uneeded lime ..

He said for soil when ph is low ..lime fixes it and brings it up

when ph is high ...aluminum sulfate brings it down .
I think thats right ,or maby the other way around ,,,either way those 2 products fix soil ph problems

Good info for dirt farmers......
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Old 10-11-2008, 05:03 AM #3
Syndicate
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Just checked the runoff tonight and it seems the solution did mellow out a bit in the soil, R.O. PH 6.0 going in-PH 6.0 coming out, it sure is a lot better than 4.8.

Anyone out there have any idea how long the hydrated lime might stay active for?


One things for sure I am going to add extra dolomite lime and maybe a little hydrated lime to the Pro-Mix from here on in, I don't want to end up in a situation like this again.

Last edited by Syndicate; 10-15-2008 at 07:12 AM..
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Old 10-11-2008, 03:07 PM #4
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I've never heard of pH problems in straight Pro-Mix BX or HP. It would be news to me any pictures of these so called problems in the plant?

Lime reacts for 3 years.
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Old 10-11-2008, 05:14 PM #5
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Sirgrassalot, I wasn't able to get a pic of decent quality in time I will get one tonight.

I am aware of your no PH grow and do not wish to get into a pissing match about it, these "so called problems" do exist, I think we can both agree that a PH of 4.8 whether tested or not, is not beneficial to the plant.

Like I said I have been using Pro-mix for years and have not had any problems with it until now, maybe it's a bad batch or maybe the mix changed or perhaps the Pro-Mix in Ont. is different than the stuff out here in Lotus Land...I don't know, what I do know is my PH dropped like a rock.

The way I see it adding some extra lime in when I transplant is very cheap and easy to do and won't cause problems to do so, so for me it is cheap insurance against having this happen to my next go around.

Last edited by Syndicate; 10-20-2008 at 05:22 PM..
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Old 10-11-2008, 05:22 PM #6
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Well don't start one. I'd look elsewhere than the pro-mix for your problem. If you bought a bail that's been wet before sale that would effect its performance as would any expired product. Adding lime won't hurt you but as you know, to me it's totally unnecessary like even checking my pH in Pro-Mix. Every time I transplant using HP or BX two limes are being added automatically. Works for my girls every time. Are you not using BX or HP than all bets are off. Premier the manufacturer of PM brands has a wide selection of products & the perfect ones for our uses I've mentioned, I've not seen any pH issues in the infirmary on those two. I've been reading the forum for several years. Maybe identifying the product you're using would help.
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I agree with alot of your thread here, I know my info is shit & meaningless. Like my life, I'm also a loser in life & failed preaching 101.

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Old 10-12-2008, 01:08 AM #7
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Hi again sirgrassalot,

The soil is Pro-mix HP.No PH related issues in the infirm?funny I found a few in just the last few pages, only one of them was actually confirmed by testing runoff-but the others the consensus was PH.

Not sure if posting pics up of "the so called problems" would do much good in convincing you it was a PH related issue as mine don't look nearly as bad as some pics I have recently viewed.But then again I don't really need to convince anyone that it was a PH issue as I confirmed it was one-by testing the runoff.

If growing without testing your soil PH works for you then good, all the more power to you-I just think some people could benefit from the knowledge that they could be having PH problems...even in Pro-Mix.I know that watering with the hydrated lime has fixed my PH problem-for how long?....I don't know but at least in the 2 days since the treatment they have started growing again...just wish I had done it sooner instead of letting them stall out for 10 days.
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Old 10-12-2008, 01:57 AM #8
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Quote:
Originally Posted by Syndicate
Hi again sirgrassalot,

The soil is Pro-mix HP.No PH related issues in the infirm?funny I found a few in just the last few pages, only one of them was actually confirmed by testing runoff-but the others the consensus was PH.

Not sure if posting pics up of "the so called problems" would do much good in convincing you it was a PH related issue as mine don't look nearly as bad as some pics I have recently viewed.But then again I don't really need to convince anyone that it was a PH issue as I confirmed it was one-by testing the runoff.

If growing without testing your soil PH works for you then good, all the more power to you-I just think some people could benefit from the knowledge that they could be having PH problems...even in Pro-Mix.I know that watering with the hydrated lime has fixed my PH problem-for how long?....I don't know but at least in the 2 days since the treatment they have started growing again...just wish I had done it sooner instead of letting them stall out for 10 days.
Send me the link, I'm into learning. No pHing works for many in PM I didn't invent the method of grow. Some people fight the pH in pro-mix, it drives them nuts. I thought you said you had no problems thus far & was complaining about a bad batch of PM or a company like Premier changing the recipe??hehehe

I can only give my experience & knowledge. Pictures will show a pH issue if you have one, you may have faulty equipment, who knows? You do seem on the defensive so I'll let you go as not to get you going as you mentioned you are afraid of a pissing match & since you don't know me I can only conclude you don't trust yourself starting one.

Do send me a link or two on anyone with a problem using straight PM BX or HP & having a pH issue. I let you know if I agree with the diagnose or if there's other issues that contributed, like tainted water etc.
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Originally Posted by Grat3fulh3ad View Post
I agree with alot of your thread here, I know my info is shit & meaningless. Like my life, I'm also a loser in life & failed preaching 101.
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Old 10-12-2008, 02:36 AM #9
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My ph has also dropped below 5, although the Pro-mix I have is not bx or hp, it's an orange bag "for potting & seeding", which is all you can get over here...I didn't even know there was all these different kinds of Pro-mix...Looking at the different products on their website it seems there's actually quite a difference with the "professional" line over the rest...good to know
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Old 10-12-2008, 03:39 AM #10
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Quote:
Originally Posted by boolmag
My ph has also dropped below 5, although the Pro-mix I have is not bx or hp, it's an orange bag "for potting & seeding", which is all you can get over here...I didn't even know there was all these different kinds of Pro-mix...Looking at the different products on their website it seems there's actually quite a difference with the "professional" line over the rest...good to know
Can you get the Sunshine triple mixes #1 - 4 ~ they work the same as BX or HP.
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Quote:
Originally Posted by Grat3fulh3ad View Post
I agree with alot of your thread here, I know my info is shit & meaningless. Like my life, I'm also a loser in life & failed preaching 101.
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