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Old Fool said:Chodo, your post made me go do a little reading about rice hulls. They have alot of good qualities plus there is disposal problem with them. Seems they don't burn too well because they contain a huge amount of naturally occuring silca. Here is a link to an article about a guy at Univ. of Arkansas who is looking into using them in ways we would be interested in. http://deltafarmpress.com/mag/farming_rice_hulls_valuable/ They can be bought through wine making supply stores online. Seems to me, they would make a good organic alternative to perlite.
cactusjack said:Try a product called Turface MVP. Also sold as Aquatic Soil