Possible Compatible Species for Gambusia affinis
Note: This is a rule based search which makes certain assumptions based on characteristics including size, temperament, temperature and pH. As with all advice, please use common sense before combining any two species.
| Scientific Name | Common Names | Synonyms | Family | |
 | Aphyocharax rathbuni | Green Fire Tetra Rathbun's Bloodfin Redflank Bloodfin | Characidae | |
 | Hypancistrus l-316 | Rio Jari Zebra Pleco | Loricariidae | |
 | Hypancistrus l-270 | Chocolate Zebra Pleco | Possibly l-307, though this is debatable. | Loricariidae |
 | Hypancistrus l-262 | Lda-05, possibly | Loricariidae | |
 | Hypancistrus sp. l-333 | Golden King Tiger Pleco | Loricariidae | |
| Kryptopterus macrocephalus | Peppered glass catfish | Siluridae | ||
| Pseudomugil connieae | Connie's Blue-Eye Popondetta Blue-Eye | Popondetta connieae | Pseudomugilidae | |
| Pseudomugil furcatus | Forktail Blue-Eye Rainbow Forktail Rainbow Furcata Rainbow | Pseudomugilidae | ||
| Rasbora borapetensis | Blackline Rasbora Brilliant Rasbora Red-tailed Rasbora | Cyprinidae | ||
 | Danio kyathit | Kyathit Danio Orange-Finned Zebra Danio | Brachydanio kyathit | Cyprinidae |
 | Corydoras leopardus | Leopard Catfish Leopard Cory | Callichthyidae | |
 | Cleithracara maronii | Keyhole Cichlid | Acara maronii Aequidens maronii | Cichlidae |
| Xiphophorus montezumae | Mexican Swordtail Montezuma Swordtail | Poeciliidae | ||
| Xiphophorus multilineatus | Pigmy Sword Tail | Poeciliidae | ||
| Barbus fasciatus | Banded Barb Ember Barb Panda Barb | Cyprinidae | ||
 | Aphyocharax paraguayensis | Panda Tetra Rio Paraguay Tetra | Characidae | |
| Chilatherina bleheri | Bleher's Rainbowfish | Melanotaeniidae | ||
 | Melanotaenia parkinsoni | Parkinson's Rainbowfish | Melanotaeniidae | |
 | Devario aequipinnatus | Giant Danio | Perilampus aequipinnatus | Cyprinidae |
 | Centromochlus perugiae | Honeycomb Tatia Oil woodcatfish | Tatia perugiae Tatia reticularis | Auchenipteridae |
 | Melanotaenia duboulayi | Crimson Spot Rainbowfish Duboulay's Rainbowfish | Melanotaeniidae | |
| Xiphophorus nezahualcoyotl | Montezuma Swordtail Nezzy Swordtail Spotted Swordtail | Xiphophorus montezumae | Poeciliidae | |
| Glossolepis wanamensis | Lake Wanam Rainbowfish Wanam Rainbowfish | Melanotaeniidae | ||
 | Melanotaenia herbertaxelrodi | Lake Tebera Rainbowfish Yellow rainbowfish | Melanotaeniidae | |
| Melanotaenia angfa | ANGFA Rainbowfish Yakati Rainbowfish | Melanotaeniidae | ||
| Melanotaenia parva | Lake Kuomai rainbowfish Sunset dwarf rainbowfish | Melanotaeniidae | ||
| Pelvicachromis taeniatus | Purple Krib | Pelmatochromis calliptera Pelmatochromis klugei Pelmatochromis kribensis Pelmatochromis kribensis klugei Pelmatochromis pulcher klugei Pelmatochromis taeniatus Pelmatochromis taeniatus klugei Pelvicachromis kribensis | Cichlidae | |
| Glossolepis dorityi | Dority's rainbowfish zig-zag rainbowfish | Melanotaeniidae | ||
 | Hypancistrus sp. L66 | King Tiger Pleco | Loricariidae | |
 | Ancistrus triradiatus | Bristlenose Pleco LDA72 | Loricariidae | |
 | Danio albolineatus | Gold Danio Pearl Danio Spotted Danio | Brachydanio albolineatus Danio albolineata Nuria albolineata | Cyprinidae |
| Corydoras nattereri | Blue Cory Natterer's Cory | Callichthyidae | ||
 | Bunocephalus coracoideus | Banjo Catfish | Aspredinidae | |
 | Botia striata | Candy Loach Zebra Loach | Cobitidae | |
 | Parambassis ranga | Glassfish Indian Glassfish | Ambassis ranga Chanda ranga Pseudambassis ranga | Ambassidae |
 | Philypnodon sp | Dwarf Flathead Gudgeon | Eleotrididae | |
 | Botia dario | Bengal Loach Dario Loach Indian Loach Queen Loach | Cobitis dario | Cobitidae |
 | Heterandria formosa | Formosa Livebearer Least Killifish | Poeciliidae | |
 | Puntius sachsi | Gold Barb | Barbus sachsii | Cyprinidae |
| Corydoras ornatus | Ornate Cory | Callichthyidae | ||
 | Corydoras elegans | Elegant Cory | Corydoras pestai | Callichthyidae |
 | Trichopsis pumilus | Dwarf Croaking Gourami Pygmy Gourami Sparkling Gourami | Ctenops pumilus | Osphronemidae |
 | Rasbora trilineata | Scissortail Rasbora Three Lined Rasbora | Cyprinidae | |
 | Glossolepis incisus | Irian Jaya Rainbowfish Red Rainbowfish Salmon Red Rainbowfish | Melanotaeniidae | |
 | Melanotaenia boesemani | Boesemani Rainbowfish Boseman's Rainbowfish | Melanotaeniidae | |
 | Chaetostoma milesi | Bulldog Pleco Rubbernose Pleco | Chaetostomus milesi | Loricariidae |
 | Melanotaenia praecox | Dwarf Neon Rainbow Dwarf Rainbowfish Neon Rainbow | Rhombatractus praecox | Melanotaeniidae |
| Iriatherina werneri | Featherfin Rainbowfish Threadfin Rainbowfish | Melanotaeniidae | ||
 | Corydoras leucomelas | Black Fin Cory False Spotted Cory | Callichthyidae | |
 | Poecilia wingei | Endler's Livebearer | Poeciliidae | |
 | Puntius oligolepis | Checkered Barb | Barbus oliogolepis Capoeta oligolepis | Cyprinidae |
 | Hyphessobrycon haraldschultzi | Harold Schultz Tetra | Hemigrammus haraldschultzi | Characidae |
| Parotocinclus jumbo | Pitbull pleco | Loricariidae | ||
| Phalloceros caudimaculatus | Dusky Millions Fish | Girardinus caudimaculatus Phalloceros caudomaculatus | Poeciliidae | |
 | Yasuhikotakia morleti | Cream Loach Horae's Loach Mouse Loach Skunk Botia Skunk Loach | Botia horae | Cobitidae |
 | Acanthocobitis botia | Mottled Loach Sand Loach Spot Loach Striped Loach Zipper Loach | Botia nebulosa Cobitis botia Nemacheilus botia Nemacheilus botia botia Nemachilus botia Nemachilus botius Nemachilus mackenziei Noemacheilus botia | Balitoridae |
 | Gasteropelecus sternicla | Common Hatchet Common Hatchetfish River Hatchet Silver Hatchet | Clupea sternicla | Gasteropelecidae |
 | Melanotaenia goldiei | Goldie River Rainbowfish | Aristeus goldiei | Melanotaeniidae |
 | Botia histrionica | Burmese Loach Gold Zebra Loach | Cobitidae | |
| Melanotaenia splendida australis | Western Rainbow | Neoatherina australis | Melanotaeniidae | |
 | Corydoras trilineatus | False Julii Cory Leopard Corydoras Three Lined Corydoras | Callichthyidae | |
| Etroplus maculatus | Orange Chromide | Chaetodon maculatus | Cichlidae | |
| Danio kerri | Blue Danio | Danio kerri | Cyprinidae | |
 | Puntius denisonii | Denison Barb Red Line Barb Red Line Torpedo Barb Torpedo Barb | Barbus denisonii Crossocheilus denisonii Labeo denisonii | Cyprinidae |
 | Hemigrammus rodwayi | Gold Tetra Golden Tetra | Hemigrammus armstrongi | Characidae |
 | Apistogramma cacatuoides | Cockatoo Dwarf Cichlid Crested Dwarf Cichlid | Cichlidae | |
 | Puntius everetti | Clown Barb | Barbodes everetti Barbus everetti | Cyprinidae |
 | Devario devario | Bengal Danio | Cyprinus devario | Cyprinidae |
 | Puntius nigrofasciatus | Black Ruby Barb | Barbus nigrofasciatus | Cyprinidae |
 | Rasbora dorsiocellata | Eye Spot Rasbora Hi Spot Rasbora One Spot Rasbora | Cyprinidae | |
 | Danio frankei | Leopard Danio | Brachydanio frankei | Cyprinidae |
 | Puntius conchonius | Red Barb Rosy Barb | Barbus conchonius Cyprinus conchonius | Cyprinidae |
 | Peckoltia sp. l147 | L147 | Ancistomus sp. | Loricariidae |
 | Puntius arulius | Arulius Barb Longfin Barb | Barbus arulius Systomus arulius | Cyprinidae |
 | Nannacara anomala | Golden Acara Golden Dwarf Acara Goldeneye Dwarf Acara Lattice Cichlid | Cichlidae | |
 | Chela caeruleostigmata | Blue Hatchetfish Flying Barb Leaping Barb Siamese Hatchetfish | Laubuca caeruleostigmata | Cyprinidae |
 | Puntius gelius | Dwarf Barb Golden Barb Golden Dwarf Barb | Barbus gelius Cyprinus gelius | Cyprinidae |
 | Puntius johorensis | Banded Barb Lined Barb Striped Barb | Barbus eugrammus Barbus tetrazona johorensis Puntius eugrammus Systomus johorensis | Cyprinidae |
 | Herotilapia multispinosa | Rainbow Cichlid | Heros multispinosus | Cichlidae |
 | Danio rerio | Golden Danio Golden Zebra Danio Longfin Zebra Danio Striped Danio Zebra Danio Zebra Fish | Brachydanio rerio Cyprinus rerio | Cyprinidae |
 | Hypancistrus l-174 | Peruvian Panther Pleco Spotted Zebra Pleco | Loricariidae | |
 | Melanotaenia maccullochi | Dwarf Rainbowfish | Melanotaeniidae | |
 | Puntius titteya | Cherry Barb | Barbus titteya Capoeta titteya | Cyprinidae |
 | Danio nigrofasciatus | Dwarf Danio Spotted Danio | Barilius nigrofasciatus Brachydanio nigrofasciatus | Cyprinidae |
| Melanotaenia gracilis | Slender Rainbowfish | Melanotaeniidae | ||
| Skiffia multipunctata | Plettet Skiffia Spotted Sawfin Spotted Skiffia | Goodea multipunctata Ollentodon multipunctatus Xenendum multipunctatum | Goodeidae | |
 | Bedotia geayi | Madagascar Rainbowfish Red Tailed Silverside Zona | Bedotia longianalis Bedotia tricolor | Bedotiidae |
 | Mikrogeophagus altispinosus | Bolivian Butterfly Bolivian Ram Clown Ruby Cichlid Ruby Cichlid | Crenicara altispinosa Microgeophagus altispinosus Papiliochromis altispinosus | Cichlidae |
 | Anomalochromis thomasi | African Butterfly Cichlid | Haplochromis thomasi Hemichromis thomasi Paratilapia thomasi Pelmatochromis thomasi | Cichlidae |
 | Betta splendens | Betta Fighter Siamese Fighting Fish | Osphronemidae | |
 | Trichogaster leerii | Diamond Gourami Lace Gourami Leeri Gourami Mosaic Gourami Pearl Gourami | Trichogaster leeri Trichopus leerii | Osphronemidae |
 | Trichogaster chuna | Honey Gourami | Colisa chuna Colisa sota Trichopodus chuna | Osphronemidae |
 | Colisa lalia | Coral Blue Dwarf Gourami Dwarf Gourami Neon Dwarf Gourami Powder Blue Gourami Sunset Dwarf Gourami | Trichogaster lalius Trichopodus lalius | Osphronemidae |
 | Dermogenys pusilla | Malayan Halfbeak Wrestling Halfbeak | Dermogenys burmanicus Dermogenys pusillus Dermogenys siamensis | Hemiramphidae |
 | Xiphophorus maculatus | Common Platy Platy Southern Platyfish | Platypoecilus aurata Platypoecilus cyanellus Platypoecilus maculatus Platypoecilus maculatus aurata Platypoecilus maculatus cyanellus Platypoecilus maculatus sanguinea Platypoecilus nigra Platypoecilus pulchra Platypoecilus rubra Platypoecilus sanguinea Poecilia maculata Poecilia maculatus | Poeciliidae |
 | Poecilia reticulata | Guppy Millions Fish | Acanthophacelus reticulatus Girardinus guppii Girardinus reticulatus Haridichthys reticulatus Heterandria guppii Lebistes poeciliodes Lebistes poecilioides Lebistes reticulatus Poecilia reticulatus Poecilioides reticulatus | Poeciliidae |
 | Gambusia affinis | Gambusia Mosquito Fish | Fundulus inurus Gambusia affinis affinis Gambusia affinis katruelis Gambusia gracilis Gambusia humilis Gambusia patruelis Haplochilus melanops Heterandria affinis Heterandria patruelis Zygonectes brachypterus Zygonectes gracilis Zygonectes inurus Zygonectes patruelis | Poeciliidae |
 | Hasemania nana | Silver Tip Tetra Silvertip Tetra | Hemigrammus nanus Tetragonopterus nanus | Characidae |
 | Metynnis hypsauchen | Silver Dollar Silver Pacu | Myletes hypsauchen | Characidae |
 | Thayeria boehlkei | Hockeystick Tetra Penguin Tetra Penguinfish | Characidae | |
 | Moenkhausia sanctaefilomenae | Lamp Eyes Redeye Tetra | Moenkhausia sanctae-filomenae Tetragonopterus sanctaefilomenae | Characidae |
 | Ladigesia roloffi | Jelly Bean Tetra | Alestiidae | |
 | Hemigrammus ocellifer | Beaconfish Head & Tail Lights Tetra | Hemibrycon ocellifer Tetragonopterus ocellifer | Characidae |
 | Nannostomus beckfordi | Golden Pencilfish | Lebiasinidae | |
 | Hemigrammus erythrozonus | Fire Neon Glo-light Tetra Glowlight Tetra | Characidae | |
 | Prionobrama filigera | Glass Bloodfin | Aphyocharax filigerus | Characidae |
 | Moenkhausia pittieri | Diamond Tetra | Characidae | |
 | Phenacogrammus interruptus | Congo Tetra | Alestopetersius interruptus Hemigrammalestes interruptus Micralestes interruptus Phenacogrammus interruptus | Alestiidae |
 | Astyanax jordani | Blind Cave Fish Silvery Tetra | Anoptichthys jordani Astyanax fasciatus mexicanus Astyanax mexicanus jordani | Characidae |
 | Gymnocorymbus ternetzi | Black Skirt Tetra Black Tetra Black Widow Skirt Tetra | Tetragonopterus ternetzi | Characidae |
 | Hyphessobrycon megalopterus | Black Phantom Phantom Tetra | Megalamphodus megalopterus | Characidae |
 | Hypancistrus zebra | L-046 Zebra Pleco | Loricariidae | |
 | Botia almorhae | Pakistani Loach Yoyo Loach | Botia lohachata | Cobitidae |
 | Synodontis nigriventris | Upsidedown Catfish | Mochokidae | |
 | Pimelodus pictus | Angelicus Catfish Pictus Catfish | Pimelodella pictus Pimelodus angelicus | Pimelodidae |
 | Corydoras paleatus | Pepper Catfish Peppered Cory | Callichthys paleatus | Callichthyidae |
 | Hypostomus niceforoi | Loricariidae | ||
 | Otocinclus vittatus | Dwarf Suckermouth Dwarf Sucking Catfish Otocinclus Otto | Loricariidae | |
 | Megalechis thoracata | Hoplo Catfish Porthole Catfish Spotted Hoplo Spotted Porthole Catfish | Callichthys thoracatus Hoplosternum thoracatum | Callichthyidae |
 | Kryptopterus minor | Glass Catfish | Silurus bicirrhis | Siluridae |
 | Epalzeorhynchos kalopterus | Flying Fox | Barbus kalopterus | Cyprinidae |
 | Corydoras aeneus | Albino Corydoras Bronze Catfish Bronze Cory Bronze Corydoras Green Cory Lightspot Corydoras Wavy Catfish | Callichthys aeneus Corydoras schultzei Hoplosoma aeneum | Callichthyidae |
| Betta macrostoma | Borneo Betta Brunei Beauty Peacock Betta Spotfin Betta | Osphronemidae | ||
| Gynochanda filamentosa | Malaysian Glass fish | Ambassidae | ||
| Danio choprai | Copper Danio Glowlight Danio | Cyprinidae | ||
| Pareutropius buffei | Debauwi catfish Three Striped African Glass Catfish | Eutropiellus buffei Eutropiellus vandeweyeri Eutropius buffei | Schilbeidae | |
 | Microglanis iheringi | Bumblebee Catfish South American Bumblebee Catfish | Pseudopimelodidae | |
 | Rasbora tornieri | Yellowtail Rasbora | Cyprinidae | |
| Sawbwa resplendens | Asian Rummynose Naked Microrasbora Rummynose Rasbora Sawbwa Barb | Cyprindae |