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VaalaVasaVarde ,

If I were building these, I would make several medium/small size systems, with different crops and fish. such that in event of a failure not all systems would break down.

astro_ray ,

Decentralized agriculture

kameecoding ,

I would make it big and use just one crop and one kind of fish, and then crossbreed the crop with the fish so they share genes but have better yield and can be eliminated by a single virus popping up and killing it all

poke ,

We gotta make that virus, too. Just in case the fish-plant hybrids rebel.

CubitOom ,

I like this idea in concept. However in most cases failure is mostly due to power loss. So unless these seprate systems have different power sources it might not protect from catastrophy that much.

As some one who does aquaponics at home. Here are some things ive learned which you might consider.

  • There is a minimum physical footprint that these systems use, especially if you are trying to conserve power. So it might make more sense to max out those systems in that minimum footprint.
  • Different fish can have very different temperature and pH requirements.
  • The pH and temp that the fish like isn’t always what a plant wants.
  • some fish have much greater ranges of pH and temp requirements than others.
  • if indoors, it’s easy for a pest to establish. Like aphids will trive without ladybugs or green lacewings.
  • Vegetables grown in aquaponic systems simply do not taste as good as vegetables grown in soil. Often they are lacking flavor.
  • something about the water in an aquaponic system is excellent for propagation from plant cuttings.

For these reasons, I use aquaponics more as a backup and complimentary grow system to my no till regenative garden. Having an indoor system is great in the winter if you want leafy greens or to proprpgate trees for the next season.

Grimy ,

When dealing with fish, a bigger system with more water is usually more stable.

CubitOom ,

Link to the actual publication

Merlin ,

I don’t know anything about this subject with the exception of a video I watched a while ago mentioning that most hydroponic startups end up failing because the cost is too high as you always need a specialist and you can only grow smaller plants/veggies there. This compared with traditional farms.

Does this change that at all? I’m hoping it does as I’d love that hydroponics got much more financially viable as I honestly believe they’ll be our future considering global warming and pests as well.

ArtikBanana OP , (edited )

The difference here is in the efficiency of the system.
And that this is an aquaponics system, which includes growing both fish and vegetables.

After more than two years of testing, Prof. Gross’s system demonstrated 1.6 times higher plant areal productivity, 2.1 times lower water usage and 16% less energy consumption per kilogram of feed than conventional systems. His calculations suggest that upscaling to about one ton of fish will allow operation of the system with no need for external energy, less than 1% water exchange, negligible waste production as well as significant carbon sequestration.

poVoq ,
@poVoq@slrpnk.net avatar

You can grow larger plants in hydroponics, but the current setups really only make sense where land costs are at a high premium, thus you end up stacking plants on top of each other with artificial lighting, and as a result there is not much space for larger plants.

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