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Catalert.png Please copy and paste ' [[Category:Killifish]] ' into the end of your article to include it in this category.

A killifish is any of various small, mainly oviparous (egg-laying) cyprinodont fish (order Cyprinodontiformes, family Cyprinodontidae). The name killifish is derived from the Dutch word "kilde", meaning small creek, puddle. The two primary families for Killis are Nothobranchiidae and Aplocheilidae. Rivulidae is a smaller group of fish which are also classed as Killifish or Pearlfish.

Most Killies are small fish, 2.5-5cm (1-2"). The largest is under 15cm (5.9"), but only a few species are this large. Although Killifish is sometimes used as an English equivalent to Cyprinodontidae, some species belonging to this family have their own common names, such as the Pupfish and the Mummichog.


Common Name Species Name Image Difficulty Maximum Size Tank Size
American Flagfish Jordanella floridae AmericanFlagfish453.jpg Moderate 6 cm 12 gal
Anatolia Killifish Aphanius anatoliae No Image.png Moderate 5.5 cm 15 gal
Banded Pearlfish Austrolebias adloffi No Image.png Challenging 2 in 15 gal
Black Lampeye Aplocheilichthys antinorii No Image.png Moderate 5 cm 15 gal
Blackfin Pearlfish Austrolebias nigripinnis Austrolebias nigripinnis992.jpg Challenging 7 cm 12 gal
Blackspotted Topminnow Fundulus olivaceus No Image.png Easy 4 in 20 gal
Blackstripe Topminnow Fundulus notatus No Image.png Easy 2.5 in 10 gal
Blue Gularis Fundulopanchax sjostedti Fundulopanchax sjostedti9827.jpg Moderate 12.5 cm 10 gal
Blue Notho Nothobranchius patrizii Nothobranchius patrizii45353.jpg Moderate 4 cm 10 gal
Bluefin Killifish Lucania goodei No Image.png Very Easy 6 cm 10 gal
Bluefin Notho Nothobranchius rachovii Nothobranchius rachovii male.jpg Challenging 2 in 10 gal
Brichard's Lampeye Aplocheilichthys brichardi No Image.png Moderate 3 cm 15 gal
Broken-Line Killifish Aphyosemion ogoense Aphyosemionogoense.jpg Moderate 2 in 10 gal
Cape Lopez Lyretail Aphyosemion australe Aphyosemion australe gold.jpg Moderate 6 cm 10 gal
Cinnamon Killifish Fundulopanchax cinnamomeum Fundulopanchax cinnamomeum2342.jpg Moderate 6 cm 12 gal
Clown Killifish Pseudepiplatys annulatus Pseudepiplatys annulatus-4101.jpg Challenging 1.5 in 10 gal
Danfordii Killfish Aphanius danfordii No Image.png Challenging 2 in 30 gal
Dubois' Panchax Aphyoplatys duboisi No Image.png Challenging 3.5 cm 15 gal
Egger's Killifish Nothobranchius eggersi Nothobranchius eggersi.JPG Moderate 2 in 10 gal
Firemouth Panchax Epiplatys dageti dageti Epiplatys dageti dageti0029.jpg Moderate 2.5 in 25 gal
Foers Killifish Nothobranchius foerschi No Image.png Moderate 2 in 10 gal
Gabon Killifish Aphyosemion gabunense gabunense Aphyosemiongabunense.jpg Moderate 2 in 10 gal
Georgiae Killifish Aphyosemion georgiae Aphyosemion georgiae3453.jpg Difficult 3.5 cm 15 gal
Goddess Killifish Aphyosemion hera No Image.png Easy 3 in 10 gal
Golden Panchax Pachypanchax playfairii Pachypanchax playfairii6873.jpg Moderate 4 in 20 gal
Golden Wonder Panchax Aplocheilus lineatus Aplocheilus lineatus1.jpg Moderate 4 in 39.6 gal
Gunther's Killifish Nothobranchius guentheri Nothobranchius Guentheri Male.JPG Challenging 2 in 10 gal
Guppy Tomeurus gracilis No Image.png Easy 3.3 cm 10 gal
Jamaican Killifish Cubanichthys pengelleyi No Image.png Moderate 6 cm 15 gal
Julimes Pupfish Cyprinodon julimes No Image.png Moderate 5 cm 30 gal
Leonnbergii Killifish Aphyosemion loennbergii Aphyosemion loennbergii9381.jpg Moderate 2.5 in 10 gal
Madagascar Panchax Pachypanchax sakaramyi Pachypanchax sakaramyi8850.jpg Moderate 3.6 in 20 gal
Marbled Lyretail Killifish Fundulopanchax marmoratus Lyretail Killifish-8314.jpg Moderate 2.4 in 10 gal
Monroviae Killifish Callopanchax monroviae No Image.png Challenging 8 in 20 gal
Myer's Killifish Simpsonichthys myersi No Image.png Moderate 4 cm 15 gal
Mékambo Killifish Aphyosemion abacinum No Image.png Very Difficult 3.5 cm 10 gal
Norman's Lampeye Aplocheilichthys normani Aplocheilichthys normani4777.jpg Moderate 1.25 in 10 gal
Northern Studfish Fundulus catenatus No Image.png Easy 8 in 30 gal
Palmqvisti's Killifish Nothobranchius palmqvisti Nothobranchius palmqvisti3453.jpg Moderate 2 in 12 gal
Persian Killifish Aphanius mento No Image.png Moderate 5 cm 15 gal
Peruvian Longfin Killifish Aphyolebias peruensis Aphyolebias peruensis5345.jpg Moderate 10 cm 20 gal
Picturatus Killifish Simpsonichthys picturatus Simpsonichthys picturatus453.jpg Moderate 1 in 10 gal
Plumed Lyretail Fundulopanchax filamentosus Fundulopanchax filamentosus2375.jpg Moderate 6 cm 15 gal
Potosi pupfish Cyprinodon alvarezi No Image.png Challenging 5 cm 20 gal
Red-Chinned Panchax Epiplatys dageti monroviae Epiplatys dageti monroviae-1382.jpg Moderate 2.5 in 25 gal
Red-Striped Killifish Aphyosemion striatum Aphyosemion striatum3957.jpg Moderate 4 cm 10 gal
Scheeli Killifish Fundulopanchax scheeli Fundulopanchax scheeli9283.jpg Moderate 2.4 in 10 gal
Six Barred Epiplatys Epiplatys sexfasciatus sexfasciatus Epiplatys sexfasciatus sexfasciatus3453.jpg Moderate 10 cm 20 gal
Splendid Killifish Aphyosemion splendopleure Aphyosemion splendopleure2384.jpg Moderate 2.4 in 10 gal
Steel Blue Killifish Fundulopanchax gardneri Fundulopanchax gardneri.jpg Moderate 7 cm 25 gal
Tanganyika Lampeye Lamprichthys tanganicanus Lamprichthys tanganicanus23487.jpg Moderate 15 cm 25 gal
Volcano Killifish Aphyosemion volcanum Aphyosemion volcanum8436.jpg Challenging 5 cm 12 gal
Walker's Killifish Fundulopanchax walkeri No Image.png Moderate 2.8 in 10 gal
Werner's Panchax Aplocheilus werneri Aplocheilus werneri7277.jpg Moderate 9 cm 25 gal
White Pearl Fish Nematolebias whitei Nematolebias whitei9837.jpg Challenging 8 cm 20 gal


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