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Old June 26, 2021   #4
rnewste
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Join Date: Apr 2007
Location: Campbell, CA
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Let me offer a different measure. 3 cups Pro-mix, 2 cups Bark Fines, 1 cup Perlite ratio. Even though Pro-mix contains some Perlite (I don't recall it being anywhere near 30%), the above ratio should work fine in a Global Bucket design, in my opinion.

Raybo
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