Explain aquarium as an ecosystem.

Explanation

### Step-by-Step Solution: Aquarium as an Ecosystem

1. **Definition of an Ecosystem**: An ecosystem is a community of living organisms (biotic components) interacting with their physical environment (abiotic components).

2. **Components of an Aquarium**: An aquarium is a small-scale ecosystem that includes various components:
- **Biotic Components**: These include fish, plants, and bacteria.
- **Abiotic Components**: These include water, sand, and light.

...