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Hi there, My name is Jeremiah. I've been growing using aquaponics for a little over a year now, and I'm hooked! I live in Wisconsin, which means that I have to deal with very cold temperatures (as you can see in the pictures). This makes it hard to grow without spending all your money on heat. I really care about energy efficiency, so I'd like to find ways to do better. Over the years of looking, I've found that there's not much out there on this topic. Most people grow in warmer climates, or just heat their greenhouses. So I started writing a blog recently and am active on a couple of other forums, trying to gather and promote best practices among those of us who grow in cold weather, and to celebrate those who do it well. There are so many awesome people in this movement! Hopefully I can learn some things from you all As for my system, I have a 450 gallon backyard flood and drain system, with media beds, in my backyard hoop house. In my fish tanks I currently raise trout, perch, and catfish. I plan to start rotating trout-tilapia every 6 months in the future, as recommended in this month's Aquaponics Survival Communities magazine. I grow spinach and greens in the winter, and basil and different greens in the summer. As I'm sure many of you do, I like to do things on the cheap if I can, though as I learn more, I am coming to realize that sometimes you have to spend money on reliability too. Some unique things about my system: I use a product called "rock bark" for my media, which is similar to but about 1/10 the price of hydroton if you buy it by the truckload. I don't have a sump tank or bell siphons, but use an indexing valve and a powerful pump to flood one bed at a time. My system is very well insulated and air sealed. I use converted freezers for my fish tanks and make my beds out of insulation (on all 6 sides). Enthalpy is my friend. I use a homemade controller that runs everything automatically, posts data on the internet, and sends me text messages when it has problems You can find some pictures of my system taken by a photographer friend here (Pictures) and I've copied a few below.