Aquaponcs is a major water savings over regular fish farming.
Emerson - carrots and radishes are decent calorie producers (not great, but decent) but the rest of the veggies are not good sources of calories, they should be considered vitamin and mineral sources.
For calories, you need something that is not a fruit, like nuts, tubers, grains, etc. And I don't see those sorts of things being grown in a hydro or aquaponics system.
Peppers have very little calories, but tons of vitamins. Same with tomatoes.
sugar is empty calories, and even then, tomatoes and peppers are nothing compared to tubers and nuts.
You are going to need a lot of tomatoes to equal the same calories as a potato.
The main drawback of aquaponics in most parts of US is that there aren't any species of fish suited for low-input operation (meaning no need to restock or buy/prepare high-protein feed) to get reasonable production of edible fish. After a lot of study about the process, i concluded that the only setup that i would consider worthwhile would be one that uses tilapia.
Ludi Ludi wrote:
How do you feel about Bluegill? Feed could be homegrown earthworms and black soldier fly larvae, which are easy to raise at home (they raise themselves, basically).
Ludi Ludi wrote:I guess one has to weigh the difficulty of keeping the Tilapia at the proper warm temperature versus the difficulty of providing food for a carnivorous fish. I'm looking at Bluegill because they live in both warm and cold water, and will breed in captivity.
Emerson White wrote:
Oh it takes so much to heat a greenhouse though.