Plankton is actively used to provide vital resources for the underwater city. The characteristics of already known microorganisms are genetically adapted, and new species are created. Thanks to the active usage of biotechnology, the city’s power consumption decreases considerably. A special kind of bacteria produces oxygen that provides almost all air needed for the underwater colony. There is no more need to deliver fresh water from the outside world — the city’s freshening stations are working full power, and specially “trained” bacteria work there.
Luminous microorganisms have the most interesting jobs: Some of them light houses and streets, others are used for roads, and still others “participate” in spectacular water performances that bear a passing resemblance to fireworks.