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But if everyone eats algae, then there is no algae left!

• lisper 6y ago
  And yet somehow there is still enough algae in the Galapagos for the iguanas to survive. Gee, I wonder how that could be possible.
• Volundr 6y ago
  That's only true if algae is incapable of reproducing as fast as it's consumed. In my experience running an aquaponics system this isn't a concern.