Aquarium resource guide

A good aquarium starts with good information.

A practical starting point for planning an aquarium, understanding water quality, and finding reliable fish-care resources.

Before adding a fish

Choose the species first
Look up the needs of the species you plan to keep, including adult size and compatible tankmates.
Prepare and test the habitat
Use a species-appropriate setup and check water quality before introducing fish.
Plan ongoing care
Arrange feeding, maintenance and access to an aquatic veterinarian when needed.

A veterinary reference on choosing an aquarium and maintaining suitable water conditions.

CDC guidance on staying healthy around pet fish and aquariums.

Find the U.S. Fish & Wildlife Service guidance for aquarium and water-garden owners.