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8 Steps to the Perfect Aquarium
Our free guide can help keep your tank clean and your fish healthy. Get it free when you sign up for the Spruce Pets!
Freshwater Fish Breeds
Learn about different species of freshwater fish, including popular breeds like bettas, guppies and catfish.
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![Cherry barb in an aquarium]()
Cherry Barb: Fish Species Profile -
![Three guppy females and one male]()
22 Small Fish for Your Freshwater Aquarium -
![Silver arowana]()
Silver Arowana Fish Species Profile -
![Neon goby on stone coral]()
Neon Goby Fish Species Profile -
![Two female and one male swordtail]()
Swordtail Fish Species Profile -
![Guppy male and female]()
Guppy Fish Species Profile -
![Suckermouth catfish resting on gravel]()
Suckermouth Catfish Species Profile -
![Oscar cichlid]()
Oscar Fish Species Profile -
![Tanichthys alboneubes known as White Cloud Mountain Minnow]()
White Cloud Mountain Minnow Fish Species Profile -
![golden barb (schuberti barb, puntius semifasciolatus) in a home aquarium]()
Barb Species Habitat and Care Information -
![Leaffish]()
South American Leaffish Species Profile -
![dwarf gourami]()
Dwarf Gourami (Flame Gourami) Fish Species Profile -
![Black widow tetra]()
Black Widow Tetra Fish Species Profile -
![Puntius nigrofasciatus - Black Ruby Barb]()
Black Ruby Barb (Purple-Headed Barb) Fish Species Profile -
![Fish swimming in an aquarium tank]()
The Anatomy of Fish -
![Botia lohachata - Yo Yo Loach]()
Yoyo Loach Fish Species Profile
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![Buenos Aires Tetra]()
Buenos Aires Tetra Fish Species Profile -
![Clown loach]()
Clown Loach Fish Species Profile -
![Harlequin Rasbora - Trigonostigma heteromorpha]()
Harlequin Rasbora (Red Rasbora) Fish Breed Profile -
![Bristlenose Catfish]()
Bristlenose Pleco Fish Species Profile -
![Serpae Tetra - Hyphessobrycon eques]()
Serpae Tetra Fish Species Profile -
![Texas cichlid (Herichthys carpintus) underwater, side view]()
Texas Cichlid (Rio Grande Perch) Fish Species Profile -
![Helostoma temminckii - Kissing Gourami]()
Kissing Gourami (Kisser Fish) Species Profile -
![Schreitmuller's silver dollar (Metynnis hypsauchen), side view]()
Silver Dollar Fish Species Profile -
![Tetra Glowlight]()
Glowlight Tetra Fish Species Profile -
![Trichogaster leeri - Pearl Gourami]()
Pearl Gourami Fish Species Profile -
![Astronotus ocellatus - Oscar]()
Common Fish Names Beginning With O -
![Small forktailed rainbowfish near bottom of fish tank with pebbles]()
Forktailed Rainbowfish Species Profile -
![Yellow Tang Fish]()
The Function of Gills in Fish -
![Art Aquarium 2015]()
Breeding Aquarium Fish, Basic Breeding Tips For Beginners -
![Yellow Lab fish]()
Common Fish Names Beginning With Y -
![Jack Dempsey - Rocio octofasciata]()
Common Fish Names Beginning With J
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![Tropical fish swimming in aquarium outside kitchen]()
A Helpful List of Aquarium Fish Species by Common Name -
![Corydoras julii fish]()
Julii Corydoras Fish Species Profile -
![goldfish in a tank]()
Best Tank Mates for Goldfish -
![Red Eye Tetra - Moenkhausia sanctaefilomenae]()
Redeye Tetra Fish Species Profile -
![White Skirt Tetra]()
White Skirt Tetra Fish Species Profile -
![Schooling Fish]()
Schooling Fish -
![Upside Down Catfish]()
Upside-Down Catfish Species Profile -
![Archer fish]()
Which Fish Can I Keep with an Archer Fish? -
![Emperor Tetra - Nematobrycon palmeri]()
Emperor Tetra Fish Species Profile -
![Helostoma temminckii - Kissing Gourami]()
Freshwater Aquarium Fish -
![Neon Tetras in Planted Fish Tank]()
Which Freshwater Fish Species Are Best for Heated Tanks? -
![Symphysodon aequifasciatus - Blue Discus]()
A to Z Index of Common Names of Freshwater Fish -
![Xiphophorus maculatus - Mickey Mouse Platy]()
Mickey Mouse Platy Fish Species Profile -
![Goldfish in toilet]()
Do Not Flush That Fish -
![Red Platy]()
Red Wagtail Platy Fish Species Profile -
![Black phantom tetra]()
Black Phantom Tetra Fish Species Profile
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![Cardinal tetra fish with shiny blue scales on top half and red scales on bottom half]()
Cardinal Tetra (Red Neon Tetra) Fish Species Profile -
![Brazilian pennywort in freshwater tank]()
Brazilian Pennywort for Aquariums -
![Black Banded Leporinus - Leporinus fasciatus]()
Black Banded Leporinus Fish Species Profile -
![Pangio kuhlii - Kuhli Loach]()
Coolie Loach Fish Species Profile -
![Gold Barb - Puntius semifasciolatus]()
Gold (Chinese) Barb Fish Species Profile -
![Gourami fish]()
Care and Breeding of Gourami Fish -
![Kissing gouramis (Helostoma temminckii) males]()
Common Fish Names Beginning With K -
![Cardinal Tetra]()
How to Tell Neon and Cardinal Tetras Apart -
![Mollie]()
Mollie Fish Species Profile -
![Amano shrimp sitting on a plant]()
Amano Shrimp Species Profile -
![German Blue Ram]()
German Blue Ram Species Profile -
![Figure 8 Puffer - Tetraodon biocellatus]()
Figure 8 Puffer Fish Species Profile -
![Colisa lalia - Dwarf Gourami Sunset Morph]()
Common and Scientific Names of Fish Beginning With D -
![Tiger Barb - Barbus tetrazona]()
Tiger Barb Fish Species Profile -
![Panda Cory]()
Common Fish Names Beginning with P -
![Trichogaster leeri - Pearl Gourami]()
Common Fish Names Beginning With L
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