Definition:
Ecosystem is self regulating, self sustaining, and a functional unit of the biosphere.
Components of ecosystem:
Ecosystems consist of biotic and abiotic components.
● The biotic components include the producers, consumers and decomposers.
● Abiotic components include light, temperature,water and soil.
Both the biotic and abiotic components interact with each other.
Aquarium as ecosystem:
Aquarium has both biotic components like fish, aquatic plants as well as abiotic components like soil, water, and light which interact with each other.
Aquarium is an artificial ecosystem as it needs human interference for sustenance.