cstronks
Songster
Sounds like an excellent system...I forgot to mention that aquaponics grows both fish and vegetables. If you don't want the vegetables, then you can simply raise fish only. 330 Gallons sounds like a good size set up. I am still trying to configure how I will be able to do mine. I might only raise fish and not focus too much on vegetables, but instead a few aquatic plants for oxygen and such. It really is an interesting system, and can be done relatively cheap if you are crafty enough.I just recently started an aquaponics system. It did require an initial investment but my yard is very very small and I want to experiment with how self sufficient I can get even in an urban yard. I built the greenhouse myself which saved money and am using an old 330 gallon tank that used to store cooking oil as my fish tank -- I found it on craigslist.
I am growing vegetables completely soil-less in rain gutters inside the greenhouse and have 30 tilapia fingerlings in the tank. The "nitrogen rich" (fish poo water) waters the plants and the plants absorb the nutrients, cleaning the water which then goes back into the tank for a beautiful little completely organic and edible ecosystem. I am growing my own duckweed in a used kiddy pool and also do red worm composting. The fish can eat the duckweed and the worms. I plan on breeding guppies for them at some point down the road but have not found a cheap enough tank for them yet.
My whole set up probably cost about $800-1k but you could definitely start a little smaller than I did and spend less. It really is just a one time investment because once you get going there is very little maintenance expense and I will not be buying as much food commercially. I will be growing a lot of food and higher quality food at that and think I will definitely save money in the long term. I spent extra on little solar panels for the pump and fan and a few fancy things that were not critical.
I am just starting out on my first crop by I think it is REALLY fun so far. I try to put as much back into the little eco system as I can. I dry the chicken poop (sort of pre-compost it to lessen the acidic-ness) enough to give it to the worms, who feed the fish, who feed the plants, who feed the chickens. It's like magic. The aquaponics system does require daily care to check the water PH.
I also have 6 laying hens. I grow my own fodder for them and farm mealworms (really easy and really really cheap). I am thinking about adding meat rabbits into the equation at the end of the year.
I love to try to learn how to do as many things as possible myself. I recently learned how to sew. I change the oil in my car. My partner and I laid our own kitchen tile. I bike to work whenever possible. Sometimes it is just about the little things. You can save a lot of money.