The Aquaponics Lab contains three separate, closed-loop systems. The larger system, which takes up 2/3 of the greenhouse, was paid for by the college's STEM grant. It begins and ends with a 550-gallon tank of water and about 100 goldfish that generate most of the nutrients necessary to grow food. (We add liquid iron and seaweed as necessary.) The other two, smaller systems were paid for by a Wells Fargo Environmental Solutions for Communities grant, administered by the National Fish & Wildlife Federation.
The three systems are growing several varieties of leaf lettuce, bok choy, swiss chard, spinach, collard greens, snap peas, etc. We recently added strawberry starters to the vertical tubes.
Soon we'll begin offering community workshops to teach attendees how they can build their own small-scale aquaponics unit in their garage or backyard. Organic food from seeds, rocks, water and fish poop.