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Aquaponics Secret Weapon

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Published on Feb 12, 2010

An unedited clip from Murray Hallam's DVD "Aquaponics Secrets" and how worms are vital in keeping your system clean of debris, blockages and how they add nutrients to your system. This four year old grow bed has never clogged up because it uses 20mm gravel as a medium. Look how clean the stones are. Join in the discussion at www.aquaponics.net.au/forum about worms in Aquaponics.
http://www.ecofilms.com.au/

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