In fishkeeping, suitable species of aquarium fish, plants and other organisms vary with the size, water chemistry and temperature of the aquarium.
For aquatic species found in particular types of aquaria, see:
- List of brackish aquarium fish species
- List of freshwater aquarium amphibian species
- List of freshwater aquarium fish species
- List of freshwater aquarium invertebrate species
- List of freshwater aquarium plant species
- List of marine aquarium fish species
- List of marine aquarium invertebrate species
