Comment: good points!

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In reply to comment: so this is my beef with aquaponics (see in situ)

good points!

Check out this book:
http://www.amazon.com/The-Most-Important-Fish-Sea/dp/1597265...

It's eye opening in showing how so many things can depend on one species. After reading this boook, I have wondered how menhaden would be managed in a libertarian society that allows ocean property rights.

“Although it was the middle of winter, I finally realized that, within me, summer was inextinguishable.” — Albert Camus