I recently got the idea into my head to create an entirely self sustaining aquatic environment in a (large) sealed jar. I'd like to include:

  1. A layer of soil and gravel at the bottom
  2. A large number of plants for natural chemical cycling
  3. Algae
  4. Brine Shrimp
  5. Copepods
  6. Maybe a few larger shrimp (enough to create a self sustaining colony)

What ratios of Algae to Brine Shrimp to Copepods to Shrimp biomass should I establish in the environment? What minerals/chemicals should I ensure are present before I seal the jar shut? What plants should I use? Am I crazy for thinking this could actually work?

  • @KarlRichter search for 'bottled ecosystem' there are lots of hits. Some with and without fish. I remember you used to be able to buy these to put on your desk. Commented Jun 30, 2018 at 11:06
  • @JamesJenkins Thank you, I was under the impression that real isolation is incredibly hard to achieve, which is apparently not the case. Commented Jun 30, 2018 at 11:38


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