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Offlinemaihimaihi
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Trying to find a PH buffer.
    #11393233 - 11/05/09 09:00 PM (7 years, 11 months ago)

I have been researching / looking for the perfect ph buffer for 50/50+ for a good two weeks now. So far the only thing's that have come across my path are. Pennington's fast acting lime, pelleted. (Analysis "Ca 38%", "CaCO3 95.5%")



or

Austinville limestone garden lime, ground dolomitic limestone.
(Analysis "Ca 20%, Mg 11.5%, CaO 28%, MgO 19.1%, CaO3 50%, MgO3 40%)
I've heard contradicting theories on Magnesium content affecting mushrooms, so I'm not even sure if this product is viable.



Does anyone have any experience with either of these products and or knowledge if they will even work?


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InvisibleCH HELL
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Re: Trying to find a PH buffer. [Re: maihimaihi]
    #11393268 - 11/05/09 09:05 PM (7 years, 11 months ago)

Not familiar with either brand but DO NOT use the Austinville limestone Mg is not good for fungi.
Take a look in my Sig for additives.
CH


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OfflineBrandNewbie
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Re: Trying to find a PH buffer. [Re: maihimaihi]
    #11393282 - 11/05/09 09:07 PM (7 years, 11 months ago)

The dolomitic limestone is not good for your needs.

Check the package of Pennington's for the word hydrated. It needs to work right away. That's why hydrated, (water soluble), lime is necessary.


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InvisibleCH HELL
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Re: Trying to find a PH buffer. [Re: BrandNewbie]
    #11393328 - 11/05/09 09:16 PM (7 years, 11 months ago)

Quote:

BrandNewbie said:
The dolomitic limestone is not good for your needs.

Check the package of Pennington's for the word hydrated. It needs to work right away. That's why hydrated, (water soluble), lime is necessary.





Very good advice.
Here is part of my additives thread.
#4 Lime and Calcium Carbonate(Cali sand, chalk, c. lime).  Adds Ca(not much) and raises PH levels,  it is a long term PH buffer.  H Lime is preferred for immediate results but is short acting PH buffer.  I recommend using Ca carb and H. lime with gypsum,  this way you get an immediate PH raise and a long term buffer that doesn't get major PH swings that can be harmful to fungus.  I won't recommend a amount to use because all subs and casing are different,  just be sure to start with small amount(1/4tsp or less).  Be sure when buying any type of lime it doesn't contain Dolomite or Dolomitic lime it contains Magnesium witch will harm mycelium.  Ca carb can be used alone as a substrate additive 1/4 cup per gal of substrate is a good start,  less is fine when using gypsum.  Ca carb is faster acting then gypsum so I recommend using both together for best results.


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Offlinemaihimaihi
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Re: Trying to find a PH buffer. [Re: CH HELL]
    #11431527 - 11/11/09 08:58 AM (7 years, 11 months ago)

Finally found gypsum at a farm supply store a couple towns over. The brand is Ben Franklin and it is agricultural grade. Should i still be on the search for hydrated lime or will gypsum by itself do? :As a ph buffer: "edit"


Edited by maihimaihi (11/11/09 09:00 AM)


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Re: Trying to find a PH buffer. [Re: maihimaihi]
    #11431532 - 11/11/09 09:03 AM (7 years, 11 months ago)

gypsum isnt a ph buffer, its used to supply calcium and sulfer which most substrates lack in. Both of are benificial nuitrients important in fruitbody growth and development.


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Offlinemaihimaihi
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Re: Trying to find a PH buffer. [Re: veda_sticks]
    #11431537 - 11/11/09 09:07 AM (7 years, 11 months ago)

I've read from multiple sources that gypsum could be used in a casing to neutralize the ph (7) was this false info?


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Re: Trying to find a PH buffer. [Re: maihimaihi]
    #11431548 - 11/11/09 09:13 AM (7 years, 11 months ago)

Think aboiut it, why would you use gypsum to neutrilise the PH when the goal is the shift the ph into the alkaline range (around 8.5). Mushroom mycelium can tolerate it but mould spores have a hard time germinating.


--------------------

PF TEK - writeup by EvilMushroom666
Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD
Cakes can and will pin! - So you think cakes suck for pins. Your wrong
Franks Simple Coir/Verm Tek
Franks Proper Pasturisation Tek
Franks Spawning To Bulk - Monotub
Professor Pinheads RTV Injection Port Tek
Foo Mans No Soak WBS Prep Tek


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OfflineBoris
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Re: Trying to find a PH buffer. [Re: veda_sticks]
    #11431553 - 11/11/09 09:15 AM (7 years, 11 months ago)

?


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Offlinemaihimaihi
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Re: Trying to find a PH buffer. [Re: veda_sticks]
    #11431574 - 11/11/09 09:27 AM (7 years, 11 months ago)

I used to use a 50/50 about two years ago and it worked fine for the first and 2nd flush, but by the 3rd mold would usually take over my casing layer. I just recently decided to start having fun with the project again and improve my designs, but in my current town it's been pure hell trying to find any kind of supplements or buffers. I've Been through the typical Lowe's and wally world hunts, and a few nursery's and farmers supply stores. Finally I found gypsum! I'm still having no luck with the calcium carbonate or hydrated lime though. So any tips on where to find the stuff, or even a brand name to look for so I don't get screwed with the dolomitic stuff again would be greatly appreciated. Throw me a bone man lol.:mushroom2:


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Offlinemaihimaihi
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Re: Trying to find a PH buffer. [Re: maihimaihi]
    #11431579 - 11/11/09 09:29 AM (7 years, 11 months ago)

Nice, I guess i'll be running around to pet stores today haha, thanks man


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