How can an aquatic terrarium sustain life?

Question: How can an aquatic terrarium sustain life?
- Keywords:
  animal,
  life,
  water
Asked by time46gap to Philip, Maxime, Jake, Ann, Annette, Amy Heather on 12 Nov 2019.
- Amy Heather Fitzpatrick answered on 12 Nov 2019:
  
  Acquatic terrariums provide sunlight and water and oxygen. They also have nitrogen sources and these are all needed to sustain life. Check out the link I have shared below and you could try to make your own at home and see how it works.
  
  https://www.instructables.com/id/How-to-Make-a-Closed-Aquatic-Ecosystem/

Question: How can an aquatic terrarium sustain life?