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Dr Wilson Lennard on Fish, Food and O2
Dr Wilson Lennard speaking at a Murray Hallam Aquaponics Workshop on the temperature requirements of fish, food and oxygen demand ...
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Comment by Sylvia Bernstein on July 14, 2012 at 11:15am
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I think Dr. Lennard has now marked all of his videos as private. Bummer!
© 2025 Created by Sylvia Bernstein.
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