permaculture

["Pete Gasper, Gasper Family Farm" <farmer1@gasperfarm.com>]

To me, fish food is a huge input, and one that is often unsustainable. What 
examples do you know of that do it without fish food inputs (or very little)?

Pete

On 12/29/2013 02:57 PM, Toby Hemenway wrote:
> Almost none of that is the case for aquaponics. It is a low-input, closed 
> loop system, very different. Fish food is the primary input, though I know of 
> systems that use almost no purchased fish food.