Anybody out there played with Aquaponics?

I have recently become interested in aquaponics. In short, this is a hybrid system in which one raises fish (generally talipia) in a tank and recirculates the water through a garden system to water/fertilize the plants.

In theory, in addition to getting an almost unlimited supply of fresh fish, the nutrient rich water can support a very healthy organic garden, and since the water gets recirculated the overall water consumption is less than a traditional garden.

I’m curious if any of you environmentally conscious jellies out there have tried this. If so, please share your experience.