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RE: wet/dry




Out of all the hydroponic medium you should try expanded clay, it sounds
more like what your looking for. Crushing it would probably work better that
keeping it as balls. I have been thinking about putting crushed in the up
lift tubes of my sponge filters. Probably a waste of time.

The dust from vermiculite and perlite is pretty nasty so always work with it
wet.

Gary Harman-Hobbs



> Actually vermiculite is an expanded mica and it contains
> potassium.  Perlite is expanded volcanic glass.  Both are sort of popped
> up like popcorn....
> MTF
>

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