passive hydroponics

i was thinking of using crystals that swell when water is added and was wondered if this would be a suitable medium for my system? i know of science prodjects for 5-9yr olds that use these crystals with some success but am not sure if it would work on an enlarged scale for cropping plants such as tomato, cucumber, chilli pepper etc.. i know it does not work for potatos as they crop in the medium what do you think?

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passive hydroponics

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Jun 30, 2012
Growing Medium Crystals
by: Larry

Crystals used as a growing medium would work just fine as long as they do not leach any toxins. Give it a try...

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