In article ,
Dax Mickelson wrote:
Richard Sexton wrote:

Not vermiculite? That is all I've read about to use. I'm new to
aquascaping. What do you recommend then?

Well, it's near heresy but mybest performing tanks have 1/2" of manure under 4-5" of fine beach sand.
Into the manure you put some washers and steel wool. Under anaerobic conditions the iron is reduced
and made available to the plants.


Here's a pic of it:

http://images.aquaria.net/plants/Cry...D/Image80s.jpg


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