A field kit for fish people

Identify a discovery, plan a tank, or take better care of the one you have.

Out in the field

Put a name to a fish and explore its world.

Follow location, shape, and markings through the freshwater key.

Check similar-looking fish side by side.

Choose a state and habitat to explore recorded species.

Learn the clues that separate commonly confused species.

Start with the fish and the water you can provide.

Screen reviewed fish by tank dimensions and water conditions.

Compare water needs and behavior concerns.

Check groups, individual housing needs, and pair conflicts.

Useful measurements and a record of what changes.

Rectangular and cylindrical tanks, in gallons and liters.

Calculate replacement water and save test readings in this browser.

Setup, cycling, feeding, equipment, costs, and peaceful communities.