Freshwater aquarium fish

252 fish, shrimp, snails and frogs, each with its care facts first: adult size, the tank it needs, temperature, water, group size and temperament. Every page also draws it at adult size in your tank.

Find fish by name, tank and water

Find fish for your tank

Search by any name, or choose your tank, water and the kind of fish you want: the cards below keep the species that fit, each with the reasons. Your choices stay in this browser.

All 252 species. Choose your tank, water and the kind of fish you want to narrow them; each then says why it fits.

Tanks are matched by US gallons, as the stocking checker does: none of the 252 species here has a known minimum floor space, so length and width are not checked. Blank readings are not checked. Tank mates use the stocking checker’s pair checks; temperament alone does not make a group work.

Fish by tank size

Fish by need

Fish by family

Tetras and other characins

Compare tetras at one scale →

Loaches and algae eaters

Compare loaches at one scale →

Rainbowfish and blue-eyes

Compare rainbowfish at one scale →

Gobies and gudgeons

Bichirs, knifefish and other oddballs

Compare oddball fish at one scale →

Care facts are standard hobby guidance, checked against Wikipedia; each species page links its article. Other names in the finder’s search come from each species’ Wikipedia article. Photos are real photographs from Wikimedia Commons, credited below; where no freely licensed photo exists the card shows our own drawing, marked as one.

Photo credits

Real photographs from Wikimedia Commons, resized and cropped to fit; each is used under the license named.