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Sillicybin said:

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I'm using coir/verm so I'm not using any buffer, but it's probably not a bad idea.

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That, to me, sounds worse!  Coir is not only usually fairly acidic, but it's more nutritious to mold and fungi than peat... is it a high ration of verm to coir?

To me, this kind of goes along with Roger's crumpled wax-paper "casing" - for both methods, it's all about the microclimate next to the pinning surface more than anything.  The only real difference in the two is that while they pins are growing, the wax paper becomes lifted off the surface while a casing mix will stay put.

I wonder if a bunch of finely shredded wax paper might do just as well as any casing mix for this - the only difference being that it'd be extremely hard for any contaminant to colonize wax paper (if not impossible).

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heh... I use 70/30 verm to coir that is pasteurized.  someone gave me the suggestion to use TUMS (calcium carbonate) in the mix to make it more basic.  The shredded wax paper sounds interesting.

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Have you tried it with Pan Cyans? My guess is that it wouldn’t work since they like a casing layer prior to knot formation.

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I would agree that it's probably not a good idea with pans.

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Do you still apply the normal ammount or casing material or less... or more?

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I put between a 1/4 and 1/2 inch

fahtster