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grow rocks similar to hydrocorn?

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Old 02-02-2009, 06:45 AM
rock rock is offline
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Join Date: Feb 2009
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Default grow rocks similar to hydrocorn?

are the grow rocks you talk about the same ,or similar to hydrocorn?

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Old 02-02-2009, 06:46 AM
Ron Ron is offline
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Join Date: Jan 2009
Posts: 1,285

Yes grow rocks is the generic name and hydrocorn is a brand name. It's all a man made clay fired ceramic material. It's also added to concrete instead of stone to make it light weight.

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