Say a 5000L tank will require:
- a vortex filter system
- 1000L sump tank with submersible pump
- 16 x 6m NFT channel
Shade cloth for:
- wind
- frost
- birds
Fish Ratio
- 350 Rainbow Trout
- 35kg per cubic metre
Hallam's Aquaponics
This system uses 1 Fish : 10L water : 10 L Food (As long as fish are growing at different rates).
So 100 Fish: 1000L of water : 1000L of food can be produced.
In another video showing a commercial crop, 1000 Lettuce can be harvested every week with 4000 Lettuce growing. To achieve this rotation, it takes 2hrs a day to harvest but I couldn't find out how many people this required.
Other Systems
I also found another ratio: 1 Million Pounds of Food, 3 acres, 10000 Fish, 500 compost