Pond in a Jar - Ecosphere Day 1

While assembling the pond-in-a-jar ecosystem, he spills some contents, leaving the water brown and revealing a tiny fish-like creature. Closer inspection shows numerous living organisms—shrimp-like animals, worms, leech-like forms, insects and other tiny swimmers—rather than fish. He compares his greener, more interesting jar with another, identifies algae, and considers removing some of it.

Initial disgust shifts toward curiosity as unexpected biodiversity makes the rudimentary jar more interesting.