(function() { dfp728Slots[i].set('adsense_text_color','000000'); [6][7][8], Xiphophorus species are regularly used in genetic studies, and scientists have developed many interspecific hybrids,[9] especially in melanoma research since the 1920s. [6] Almost all the Xiphophorus, including the rare species, have captive populations that are maintained as "insurance" populations at breeding centers and by dedicated private aquarists. [4][5], Three species and their hybrids are common in the aquarium trade: the green swordtail (X. hellerii), the southern platyfish (X. maculatus) and the variable platyfish (X. variatus). }(document.createElement('script'), document.getElementsByTagName('script')[0], '//cdn.taboola.com/libtrc/verticalscope-network/loader.js'); [4] ... Freshwater fish are species that spend some or all of their lives in freshwater, such as rivers and lakes. Although they are not schooling species, a group of Swordtail Fish is especially amazing to look at. For the free software foundation, see, "Swordtail" redirects here. (2018). e.async = 1; A lesser known variety of the species, the Bristlenose Pleco has a lot going for it. If you have a tank, be on the lookout for these six common freshwater diseases. When breeding swordtails, it is advisable to remove pregnant females into separate breeding tanks. [10] The Xiphophorus Genetic stock center, founded by Myron Gordon in 1939, is an important source of these fish for research.[7]. [4], This article is about the fish genus. [4][11] Otherwise hybridization in the wild is uncommon in this genus and only known from three or four locations, despite the fact that many sites have two sympatric species. .addSize([768, 200], [728, 90]) [4] The common names given to individual species in this genus do not always reflect their actual relationships; for example, the marbled swordtail (X. meyeri) is actually in the platy group based on its genetics while the short-sword platyfish (X. continens) is closer to the swordtails. [6], All other species of Xiphophorus are highly localized and mostly endemic to Mexico. For the butterfly, see. Swordtails get their name from the distinctive sword-like extension on the male’s tail fin, which can sometimes grow almost as long as their bodies. [3] Two of these species, X. clemenciae and X. monticolus, are likely the result of natural hybrid speciation (ancestors of both are a platy species and a swordtail species). //Add Taboola Header tag functions to eu and non-eu arrays. International Union for Conservation of Nature, "Comprehensive phylogenetic analysis of all species of swordtails and platies (Pisces: Genus Xiphophorus) uncovers a hybrid origin of a swordtail fish, Xiphophorus monticolus, and demonstrates that the sexually selected sword originated in the ancestral lineage of the genus, but was lost again secondarily", "Hybrid origin of a swordtail species (Teleostei: Xiphophorus clemenciae) driven by sexual selection", "Preserving Xiphophorus couchianus in the Home Aquarium, Part I: Sad History & Unanswered Questions", "Genetic and environmental melanoma models in fish", https://en.wikipedia.org/w/index.php?title=Xiphophorus&oldid=962549708, Creative Commons Attribution-ShareAlike License, This page was last edited on 14 June 2020, at 18:21. googletag.defineSlot('/1030735/PetGuide_com_300x250_Top1_PETS_Content', [300,250], 'PetGuide_com_300x250_Top1_PETS_Content').defineSizeMapping(googletag.sizeMapping().addSize([1024, 10], [300, 250]).addSize([642, 10], [300, 250]).addSize([0, 0], [99999, 99999]).build()).addService(googletag.pubads()); Swordtails are primarily herbivores and can be fed on a diet of flake based foods or algae. If you are about to make a list of peaceful freshwater fish that you want to add to your aquarium, then don’t hesitate to add this one. dfp728Slots[i].set('adsense_border_color','ffffff'); The best male to female ratio is one male and three or four females… Like many small native species, the exotic green swordtail is omnivorous and consumes algae, detritus and small insects. There are currently 28 recognized species in this genus, according to FishBase. Should you discover the fish in waterways, take a digital photo or freeze the fish whole and report it! They are also powerful jumpers and care should be taken to ensure that the swordtail’s aquarium is carefully covered. The female swordtail is devoid of any sword and has a non-elongated fan-shaped anal fin. A relatively hardy and easy to care for livebearer, the swordtail is one of the most popular aquarium fish species among beginner aquarists. f.parentNode.insertBefore(e, f); document.write(''); Fish Identification: Find Species (See list of species below) Select Class: Myxini Cephalaspidomorphi Elasmobranchii Holocephali Actinopterygii Sarcopterygii The list … Three species and their hybrids are common in the aquarium trade: the green swordtail (X. hellerii), the southern platyfish (X. maculatus) and the variable platyfish (X. variatus). These three are the only species that have large native ranges. googletag.pubads().setTargeting("folder2", "fish"); googletag.cmd.push(function () { A relatively hardy and easy to care for livebearer, the swordtail is one of the most popular aquarium fish species among beginner aquarists. Swordtails are generally very peaceful and make excellent community fish. To keep them you need flocks of at least 5 individuals. window._taboola = window._taboola || []; } dfp728Slots.push(googletag.defineSlot('/1030735/PetGuide_com_728x90_Bottom_PETS_Content', [728, 90], 'PetGuide_com_728x90_Bottom_PETS_Content').defineSizeMapping(dfpMapping728x90).addService(googletag.pubads())); })(); window._taboola = window._taboola || []; }); .addSize([480, 200], [320, 50]) The green swordtail (Xiphophorus hellerii) is a species of freshwater/brackish fish in family Poeciliidae of order Cyprinodontiformes. References and further reading. .addSize([320, 700], [320, 50]) deployads.push(function () { deployads.gpt.enableServices() }); e.src = u; Males can however turn aggressive towards each other once they reach sexual maturity, so it is advisable to house only one male with several females in an aquarium. If you are about to make a list of peaceful freshwater fish that you want to add to your aquarium, then don’t hesitate to add this one. It is also advisable to add a little bit of salt into the swordtail aquarium. Locate rare and unusal cichlids online and other interesting tropcial fish. Swordtails also shouldn’t be kept with larger species of predatory fish like cichlids which might pretty on them. © 2013 VerticalScope Inc. All rights reserved. if ( gfchelper.isAdProviderAllowed("taboola") ) { [3], The various Xiphophorus species range from the southern Rio Grande basin in Mexico, through eastern drainages in the country (river basins draining into the Gulf of Mexico), to northern Guatemala, Belize and northern Honduras. !function (e, f, u) { googletag.defineSlot('/1030735/PetGuide_com_160X600_RightBottom_PETS_Content', [160,600], 'PetGuide_com_160X600_RightBottom_PETS_Content').defineSizeMapping(googletag.sizeMapping().addSize([1024, 10], [160, 600]).addSize([642, 10], [160, 600]).addSize([0, 0], [99999, 99999]).build()).addService(googletag.pubads()); Froese, Rainer and Pauly, Daniel, eds. }); These three are the only species that have large native ranges. In addition, several species are commonly kept by aquarium hobbyists, especially the green swordtail (X. helleri), southern platyfish (X. maculatus), and variable platyfish (X. variatus). [4][5] In many locations there are two sympatric species,[5] but the localized species are mostly (though not entirely) separated from each other, even when they are restricted to the same river basin. googletag.pubads().setTargeting("sitename", "petguide_com"); Thanks to modern advances, keeping discus fish is much easier than ever before. Like most livebearers, swordtails reproduce quite prolifically and require no special effort when breeding. googletag.defineSlot('/1030735/PetGuide_com_1x1_Slimcut_PETS_Content', [1, 1], 'PetGuide_com_1x1_Slimcut_PETS_Content').addService(googletag.pubads()); // mobile ads While wild swordtails are mostly a drab green in color, most aquarium varieties come in a range of colors including red, orange, black, tuxedo, gold, spotted, neon, albino, silver and blue. console.log("cf: taboola googlefc not found. 'https:' : 'http:') + } googletag.pubads().setTargeting("folder1", "breeds"); The minimum tank size for one adult swordtail fish should be at least 15-gallons. Swordtails get their name from the distinctive sword-like extension on the male’s tail fin, which can sometimes grow almost as long as their bodies. The name Xiphophorus derives from the Greek words ξίφος (dagger) and φόρος (bearer), referring to the gonopodium on the males.

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