In our quest for a better aquaponics, we each face our challenges. Here in Wisconsin, we average five feet of snow in wintertime along with temperatures below -20°F, and often go two solid months without a single day above freezing. When we try to grow plants in winter, our main battle is with the cold. Growing Power and Nelson & Pade, both here in Wisconsin, offer one solution which basically involves heating your greenhouses all winter long. A large commercial operation with high sales prices or a cheap source of heat may justify this, but as an urban homeowner with a backyard system the numbers don’t add up.