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tonyperez420
Shaman Rasta

Registered: 11/03/04
Posts: 1,234
Last seen: 10 years, 11 months
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calcium carbonate vs. crushed oyster shells ?
#5376858 - 03/08/06 08:44 AM (17 years, 10 months ago) |
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Good day to all...
I was looking to put an order with mycosupply and was wondering...
Whats the difference between calcium carbonate and crushed oyster shells? Calcium carbonate is much more expensive!
Which is better to use with a casing layer?
I was planning on using the 50/50+ tek http://www.shroomery.org/index.php/par/7977
15 ? cups of vermiculite 15 ? cups of peat moss 4 ? cups of crushed oyster shell 1.2 cups of hydrated limestone 15 cups of distilled water
thanx for your inputs!
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tonyperez420
Shaman Rasta

Registered: 11/03/04
Posts: 1,234
Last seen: 10 years, 11 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: tonyperez420]
#5376946 - 03/08/06 09:15 AM (17 years, 10 months ago) |
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is there a difference... besides the price?
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thenewguy05
The Mushroom Man


Registered: 02/11/05
Posts: 2,123
Loc: My Underground Layer
Last seen: 2 years, 5 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: tonyperez420]
#5376963 - 03/08/06 09:21 AM (17 years, 10 months ago) |
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I am pretty sure it's the same thing. prolly more crushed than oyster shells because they know what you will be using it for.
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Oatman2000
-=Outa Space=-



Registered: 05/10/05
Posts: 2,877
Loc: Planetary Nebula
Last seen: 1 year, 4 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: thenewguy05]
#5376987 - 03/08/06 09:30 AM (17 years, 10 months ago) |
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i have heen wanting to know how much hydrated lime to add to a casing mix. don't know if this is the same stuff you got tonyperez, but i haven't used any yet.
--------------------
Spawning to COIR
My Chocolate Recipe
WBS QUART SPAWN JAR PREPERATION ----------------------------
4-PO-DMT; 4-phosphoryloxy-N,N-dimethltryptamine
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tonyperez420
Shaman Rasta

Registered: 11/03/04
Posts: 1,234
Last seen: 10 years, 11 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: Oatman2000]
#5377050 - 03/08/06 09:54 AM (17 years, 10 months ago) |
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oatman,
you should read this entire link....
http://www.shroomery.org/index.php/par/7977
there are some brands of hydrated lime that cause the ph balance to become way too high, in which no shrooms will grow ( I do not know exactly which brands they are)
read the link tho, I am sure it will help you out.... if theres anything else just let me know or write up a post!
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thenewguy05
The Mushroom Man


Registered: 02/11/05
Posts: 2,123
Loc: My Underground Layer
Last seen: 2 years, 5 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: tonyperez420]
#5377060 - 03/08/06 09:56 AM (17 years, 10 months ago) |
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lime is calcium hydroxide i beleive. the ph is thrown so far off because lime breaks down faster than calcium carbonate and therefore the ph alters as time goes by.
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tonyperez420
Shaman Rasta

Registered: 11/03/04
Posts: 1,234
Last seen: 10 years, 11 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: thenewguy05]
#5377142 - 03/08/06 10:22 AM (17 years, 10 months ago) |
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thenewguy,
so you think its best not to use hydrated lime at all in the 50/50+ casing mix? In your experience, you think it will mess up 2nd and 3rd flushes?
I was going to order hydrated lime from mycosupply for the specific reason that I did not want to throw off the PH. I would think the brand they sell would be ok?
Any other experienced grower with an opinion on this subject?
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thenewguy05
The Mushroom Man


Registered: 02/11/05
Posts: 2,123
Loc: My Underground Layer
Last seen: 2 years, 5 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: tonyperez420]
#5377186 - 03/08/06 10:41 AM (17 years, 10 months ago) |
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it's a possibility, i've never worked with mycosupply's brand of lime although i support them and their products 100%. i've always liked the crushed oyster shells personally but if done in moderation i don't think the lime from mycosupply would throw the ph off very much within such a short period of time.
some brands are better than others. Mycosupply most likley has a horticultural grade lime that won't destroy the mycelium like other brands would.
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Sinthetic
Stranger


Registered: 12/05/05
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Re: calcium carbonate vs. crushed oyster shells ? [Re: tonyperez420]
#5377190 - 03/08/06 10:42 AM (17 years, 10 months ago) |
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That's what happens. The hydrated lime is very strong but breaks down. After 1 or 2 flushes the casing is very acidic which is bad for mushrooms and good for contams. Regular lime(which is calcium carbonate) will take more to initially raise the PH but will last the life of the casing. Some people will even use the hydrated lime with regular lime as a long term buffer.
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tonyperez420
Shaman Rasta

Registered: 11/03/04
Posts: 1,234
Last seen: 10 years, 11 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: Sinthetic]
#5377221 - 03/08/06 11:04 AM (17 years, 10 months ago) |
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I see...
well I guess I will do an experiment with the 50/50+ casing tek with the same strain
one casing will be 15 ? cups of vermiculite 15 ? cups of peat moss 4 ? cups of crushed oyster shell 1.2 cups of hydrated limestone 15 cups of distilled water
the other will be (without the hydrated lime) 15 ? cups of vermiculite 15 ? cups of peat moss 4 ? cups of crushed oyster shell 15 cups of distilled water
of course it will be smaller portions then stated above.... I will post my results... I will probably post each flush individually to see if the limestone will effect 2nd, 3rd, etc flushes
which you think will be best???
I will find out soon
thanx for everybody's input
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hyphae
born to grow


Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 12 years, 8 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: tonyperez420]
#5377287 - 03/08/06 11:30 AM (17 years, 10 months ago) |
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Myco supply is selling calcium carbonate not hydrated lime as some have said. Calcium carbonate is superior to crushed oyster shells in more ways than one. Now the biggest problem is Myco supply sells oyster shell that is crushed not oyster shell flour which is what we want in this hobby but the way they get it is so cheap they can make more money off of it, although they most likely aren't making much anyway the second disadvantage is between calcium carbonate and oyster shell flour is oyster shell flour is not very water soluble where as calcium carbonate is making it more available as a buffer (fact) I use oyster shell flour with excellent results and I get it for $2 a lb. and it goes quite far. When using peat based casing mixes as we all know you should have hydrated lime as a short term buffer affecting the pH immediately sweetening it until the long term buffers are put into use. GL and do it right use a small amout of hydrated in combination with your long term buffer whatever it may be. GL
-------------------- Getting the most out of your casings!, A pinning strategy. Oyster Shell "Flour" $2 for 1lb. a hell of a deal Not what is overlay but rather what overlay is Gas Exchange vs. FAE "We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"
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Oatman2000
-=Outa Space=-



Registered: 05/10/05
Posts: 2,877
Loc: Planetary Nebula
Last seen: 1 year, 4 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: hyphae]
#5377317 - 03/08/06 11:55 AM (17 years, 10 months ago) |
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any reg. places you get oyster shell Flour?
tried to search
--------------------
Spawning to COIR
My Chocolate Recipe
WBS QUART SPAWN JAR PREPERATION ----------------------------
4-PO-DMT; 4-phosphoryloxy-N,N-dimethltryptamine
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hyphae
born to grow


Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 12 years, 8 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: Oatman2000]
#5377321 - 03/08/06 11:58 AM (17 years, 10 months ago) |
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Oyster Shell "Flour" $2 for 1lb. a hell of a deal
-------------------- Getting the most out of your casings!, A pinning strategy. Oyster Shell "Flour" $2 for 1lb. a hell of a deal Not what is overlay but rather what overlay is Gas Exchange vs. FAE "We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"
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tonyperez420
Shaman Rasta

Registered: 11/03/04
Posts: 1,234
Last seen: 10 years, 11 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: hyphae]
#5377333 - 03/08/06 12:04 PM (17 years, 10 months ago) |
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so hyphae,
thanx for the info... but I am kind of confused now
What do you use for your casing layer? Where can I purchase oyster shell flour?
What combinations of ingredients from mycosupply would make the best casing? (please include portion amounts)
For the 50/50+ tek... should I substitute crushed oyster shell for calcium carbonate?
And, mycosupply does sell hydrdated lime (under substrate section) do you think its best to use or not use their hydrated lime with the 50/50+ tek?
I do ask all questions as humbly as one can.... thanx hyphae
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hyphae
born to grow


Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 12 years, 8 months
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Re: calcium carbonate vs. crushed oyster shells ? [Re: tonyperez420]
#5378680 - 03/08/06 06:46 PM (17 years, 10 months ago) |
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I prefer whatever I have on hand whether it be calcium carbonate or oyster shell for long term buffer and hydrated lime as a short term buffer, I use these in combination BTW. I gave you a link in my last thread that is quite a bargain IMO. 50/50+ requires both short and long term buffers. I use 1tsp. hydrated lime and 1-2tbs. long term per quart of mix which works great for me everytime. I was not saying Myco supply doesn't sell hydrated lime what I meant was calcium carbonate is not hydrated lime sorry. BTW I'm a 50/50+ man all the way!
-------------------- Getting the most out of your casings!, A pinning strategy. Oyster Shell "Flour" $2 for 1lb. a hell of a deal Not what is overlay but rather what overlay is Gas Exchange vs. FAE "We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"
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