Thanks for the welcome everyone.
Without wanting to divert people away from this lovely forum - the best place to find info on Aquaponics is the forum I moderate -
www.aquaponicshq.com Here you will find a wealth of knowledge on how to grow fish for food and veges together. It really is an amazing way to produce food in a really small amount of space with little effort.
I have never grown food before setting up my aquaponics system but just the other day I harvested 9kg of tomatoes and made a huge batch of relish - 25 large jars!
That amazed me as I did nothing to care for the plants other than plant and stake them. No chemicals or pestisides. I know its the first food that has ever been grown where I live - which is a little town house. Similar I guess to an english terrace house with a small courtyard out the back. Not somewhere you would normally be able to grow much.
I have also harvested continuous supplies of cherry tomatoes, basil, italian parsley, chives, cucumbers, lettuce, strawberries, and beans.
You can set up an aquaponics system very cheaply from recycled materials. Many people use old bath tubs as the grow beds and IBC's or Megabins as the fish tanks. With the addition of a pump, some plumbing and some research you are on your way.
Cheers,
Hamish