Re: [APD] Natural pea gravel, a high iron substrate

[Derek Parr <derekparr at earthlink_net>]

I'll second that!

I use a thin layer of local red clay, its everywhere in the south, on 
the bottom then cover with washed creek sand/gravel. Costs me a whopping 
$0.00!
And the creek is alot closer and has better hours than my local hardware 
stores.

-derek

Liz Wilhite wrote:
>  I think the value of expensive substrates is wildly exaggerated.
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