Aquaponics is similar to hydroponics, but makes use of fish to create fertilizer-rich (fish waste 💩) water for the plants to thrive. In turn, the plants help clean the water for the fish.
You can put the pumps and fish feeders on a timer to automate them, and even use fish types people eat for fish farming.
My only ask is that you remember to make the tank nice for the fish. A stressed fish is a dead fish, and way too many aquaponic users just throw a bunch of fish in an empty(no stimulation) and overcrowded tank.
The below videos talk about using the systems to grow food in urban spaces.
“Ever heard of aquaponics? In urban areas, aquaponics helps combat barriers that come with farming in cities, like lack of access to space. “
“There are so many barriers in place when it comes to growing food in cities, but education and lack of access to space are the hardest to overcome. Yemi Amu has dedicated her life as a farmer to solving this problem, by starting the only Aquaponics farm in NYC. Oko Farms in Brooklyn is both a working farm which provides fresh food to surrounding neighborhoods, while also actively engaging the public in education on how to grow food for yourself in urban environments.”
"What’s up everyone, in this video i build part 1 of an indoor DIY aquaponics system for my 10 gallon fish tank! I have been interested in aquaponics for a while now and know i wanted to build an indoor DIY aquaponics system early on when i saw the price of most retail aquaponics kits. This DIY aquaponics system was built using all materials found either on Amazon or at local hardware stores and came in under $50 total! "
Thanks for the insights. Will carp/(easy fish to farm) eat algae or does it require some intermediate lifeforms or maybe pelletization or something? I know Cody was eating the stuff and talking about its protein contents etc.
The nitrogen problem is actually acquiring the element in the first place. In space, nitrogen is often found in the form of ammonia. This compound boils off/evaporates easily. It takes a large gravity well to hold onto such a gas on stellar cycle time scales as the stellar radiation will break it down to lighter components while the stellar wind will strip off the gas with time. Gravity wells are very expensive things to deal with overall. We can only barely escape Earth’s gravity well. It is like a prison of sorts. The prison is even worse because of gravitational differentiation that separates heavier elements drawing them down into the depths. In space, small bodies have a lot more even distribution of rare heavy elements. The wealth of space is immense. However there are other types of rarity and processes that impact distribution.
This was simply me probing at random to see what kinds of awareness people have about the complete elemental cycles involved with life in a practical sense. There are cycles of hydrogen, carbon, phosphorus, sulphur, iron, oxygen, nitrogen, etc. It is easy to take for granted the things the Earth provides, but that a space station that is tens of kilometers in scale will need to source directly :)
I have never owned carp, but a lot of fish are opportunistic, though have food preferences(so basically, if they are starving, they may resort to eating something, even if they prefer something else). If your setup is outdoors, they may get enough food from wild insects. For example, my mother has a very small outdoor goldfish pond with some real lily-pads, and thanks to the wildlife insects, she does not have to feed them and they are many years old. Otherwise, you could grow your own fish food (example: https://www.youtube.com/watch?v=6k9xuW2Irck ) or some fish even like certain kitchen scraps.
AH WAIT. 💡 I just remembered a video of a system in Japan where the people of a town wash their produce and dishes in a kabata. It is basically a network of streams going from house to house, and the free-roaming fish there(which I think *might *have been carp) eat all the waste and help keep the water clean. Here is the video: https://www.youtube.com/watch?v=_rwxsjzjDhs I also remember this article being informative (and is where the image is from): http://ihcsacafe-en.ihcsa.or.jp/news/harie/
In regards to your story, haha I am sorry to say it does not sound like I will be much help for that. The science your story is going into is far too smart for my brain, I’m afraid. You sound like a scientist! hahaha.
This is a really helpful suggested reference that will definitely make it into my tech tree. Thanks!
I’m just naive enough to imagine a world with such future tech, and have too much time on my hands. The little ideas like these you shared all add up into something bigger eventually. It’s about dreaming of a better future and a magnifying glass to view the present, even if I’m the only one that is ever interested in it all. Thanks again!
No problem! I am glad I was able to help!