Fresh Tilapia from my basement?!

I keep reading about Aquaponic gardening.  This sounds so unbelievable I had to learn more, and a few weeks ago my buddy Rick and began building our own aquaponic gardening system and it's ready to go:

 

 

 In case you don't know, aquaponics is a system of gardening where you grow fish and plants in a symbiotic relationship.  The system is almost completely self sustainable.  The only thing you need to add is a little water and fish food.  The fish eat the food and their waste is used to fertilize the plants.  The tank water is pumped back into the plants which completely filter the water and return it to the fish tank.   "We can get off the grid!".   Anyway, dinner was amazing.  Everything came out of the garden in his basement.  Tilapia Tacos with a cucmber relish.  We grew the tilapia, which we ate within 30 minutes of taking it from the tank, talk about fresh.  We grew the coriander, cilantro and cucumbers right there above the fish.  And the most amazing thing was, we drank the pure water kindly filtered by those same cucumber plants.  Not a hint of fish poop left.

Tilapia Tacos With Cucumber Relish

 Ingredients

• 1  tablespoon  olive oil, plus more for the grill
• 4  6-ounce tilapia fillets
• 1  teaspoon  ground coriander
• kosher salt and black pepper
• 6  radishes, sliced
• 1  cucumber, halved and sliced
• 2  tablespoons  fresh lime juice, plus lime wedges for serving
• 8  corn tortillas, warmed
• 1  cup  fresh cilantro leaves
• 1/4  cup  sour cream

Directions

1. Heat grill to high; oil grill. Season the tilapia with the coriander, ½ teaspoon salt, and ¼ teaspoon pepper and grill until cooked through, 1 to 2 minutes per side. Break into pieces.
2. In a medium bowl, toss the radishes and cucumber with the lime juice, oil, and ¼ teaspoon each salt and pepper. Serve the tilapia in the tortillas with the cucumber relish, cilantro, sour cream, and lime wedges.