Fish Database
70 freshwater fish species indexed. Click any fish to view profile and compatible tank mates.
Betta Fish
Betta splendens
semi-aggressive · 5 gal
Neon Tetra
Paracheirodon innesi
peaceful · 10 gal
Guppy
Poecilia reticulata
peaceful · 10 gal
Corydoras Catfish
Corydoras aeneus
peaceful · 20 gal
Angelfish
Pterophyllum scalare
semi-aggressive · 40 gal
Discus
Symphysodon aequifasciatus
peaceful · 55 gal
Dwarf Gourami
Trichogaster lalius
peaceful · 20 gal
Platy
Xiphophorus maculatus
peaceful · 10 gal
Molly
Poecilia sphenops
peaceful · 20 gal
Swordtail
Xiphophorus helleri
semi-aggressive · 20 gal
Zebra Danio
Danio rerio
peaceful · 10 gal
Tiger Barb
Puntigrus tetrazona
semi-aggressive · 20 gal
Harlequin Rasbora
Trigonostigma heteromorpha
peaceful · 10 gal
Oscar
Astronotus ocellatus
aggressive · 75 gal
Bristlenose Pleco
Ancistrus cirrhosus
peaceful · 30 gal
Cherry Shrimp
Neocaridina davidi
peaceful · 5 gal
Common Plecostomus
Hypostomus plecostomus
peaceful · 55 gal
Clown Loach
Chromobotia macracanthus
peaceful · 75 gal
Mystery Snail
Pomacea bridgesii
peaceful · 5 gal
Electric Blue Crayfish
Procambarus alleni
aggressive · 30 gal
Goldfish
Carassius auratus
peaceful · 30 gal
Kuhli Loach
Pangio kuhlii
peaceful · 20 gal
Rainbow Shark
Epalzeorhynchos frenatum
semi-aggressive · 55 gal
Bolivian Ram
Mikrogeophagus altispinosus
peaceful · 30 gal
German Blue Ram
Mikrogeophagus ramirezi
peaceful · 20 gal
Silver Dollar
Metynnis argenteus
peaceful · 55 gal
Bala Shark
Balantiocheilos melanopterus
peaceful · 150 gal
Weather Loach
Misgurnus anguillicaudatus
peaceful · 30 gal
Kribensis
Pelvicachromis pulcher
semi-aggressive · 20 gal
Firemouth Cichlid
Thorichthys meeki
semi-aggressive · 30 gal
YoYo Loach
Botia almorhae
peaceful · 30 gal
Flowerhorn
Amphilophus hybrid
aggressive · 75 gal
Bichir
Polypterus senegalus
semi-aggressive · 55 gal
Hillstream Loach
Sewellia lineolata
peaceful · 20 gal
Pearl Gourami
Trichopodus leerii
peaceful · 20 gal
Bristlenose Pleco
Ancistrus cirrhosus
peaceful · 20 gal
Boeseman's Rainbowfish
Melanotaenia boesemani
peaceful · 30 gal
White Cloud Minnow
Tanichthys albonubes
peaceful · 10 gal
Celestial Pearl Danio
Danio margaritatus
peaceful · 10 gal
Cardinal Tetra
Paracheirodon axelrodi
peaceful · 10 gal
Rummy-Nose Tetra
Hemigrammus rhodostomus
peaceful · 20 gal
Black Skirt Tetra
Gymnocorymbus ternetzi
semi-aggressive · 15 gal
Dwarf Pufferfish
Carinotetraodon travancoricus
semi-aggressive · 5 gal
Paradise Fish
Macropodus opercularis
semi-aggressive · 20 gal
Siamese Algae Eater
Crossocheilus oblongus
peaceful · 30 gal
Cockatoo Dwarf Cichlid
Apistogramma cacatuoides
semi-aggressive · 20 gal
Cherry Barb
Puntius titteya
peaceful · 15 gal
Gold Barb
Puntius semifasciolatus
peaceful · 20 gal
Ember Tetra
Hyphessobrycon amandae
peaceful · 10 gal
Neon Rainbowfish
Melanotaenia praecox
peaceful · 20 gal
Sparkling Gourami
Trichopsis pumila
peaceful · 5 gal
Red-Eye Tetra
Moenkhausia sanctaefilomenae
peaceful · 20 gal
Congo Tetra
Phenacogrammus interruptus
peaceful · 30 gal
Silver Arowana
Osteoglossum bicirrhosum
semi-aggressive · 250 gal
Jack Dempsey
Rocio octofasciata
aggressive · 55 gal
Blood Parrot Cichlid
Amphilophus hybrid (crossbreed)
semi-aggressive · 30 gal
Electric Blue Acara
Andinoacara pulcher (electric blue variant)
semi-aggressive · 30 gal
Red Tail Black Shark
Epalzeorhynchos bicolor
semi-aggressive · 30 gal
Otocinclus Catfish
Otocinclus vittatus
peaceful · 20 gal
Lyretail Killifish
Aphyosemion australe
peaceful · 10 gal
Electric Yellow Lab
Labidochromis caeruleus
semi-aggressive · 30 gal
Lemon Tetra
Hyphessobrycon pulchripinnis
peaceful · 15 gal
Serpae Tetra
Hyphessobrycon eques
semi-aggressive · 20 gal
Emperor Tetra
Nematobrycon palmeri
peaceful · 20 gal
Panda Corydoras
Corydoras panda
peaceful · 15 gal
Upside-Down Catfish
Synodontis nigriventris
peaceful · 30 gal
Amano Shrimp
Caridina multidentata
peaceful · 10 gal
Nerite Snail
Neritina natalensis
peaceful · 5 gal
Honey Gourami
Trichogaster chuna
peaceful · 20 gal
Heckel Discus
Symphysodon discus
peaceful · 75 gal