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Topic: Swordtail

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	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal
		The male green swordtail grows to a maximum overall length of 14cm (5.5in) and the female to 16 cm (6.3 in).
		The name "swordtail" is commonly but mistakenly believed to be derived form the elongated lower lobe of the male's caudal fin (tailfin), but is actually derived from the sword shaped anal fin of the male.
		The green swordtail, as the most common of the swordtail species (and in recognition of the fact that many captive-bred color varieties are not green), is typically known simply as the swordtail in the aquarium hobby.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=swordtail (420 words)

	Swordtail Fish
		Dark orange varieties are often sold as red swordtails.
		Black swords with or without metallic blue spots, tuxedo swordtails and combinations of all these colours have also been produced.
		Lyre tail swordtails and hi fin varieties have also been produced.
	www.e-aquarium.com.au /swordtail.htm (327 words)

	Swordtail
		the male Swordtail is a beautiful fish, and his "sword", which is an extension of the caudal fin, is one of the most striking physical characteristics possessed by any aquarium fish.
		Unfortunately, many Swordtails of today do not have the same majestic tail of the original Swordtail, but they do have color, and this makes up somewhat for their lack of tail development.
		One of the prime factors, which, has served to popularize the Swordtail, is the fact that the fish is a livebearer, and thus bred with extreme ease.
	www.brooklands.co.nz /tropical/sword.htm (298 words)

	Swordtail (Xiphophorus helleri)
		The Swordtail requires a tank of at least 20 gallons that is well planted with plenty of room for swimming.
		The Swordtail is a livebearer and can give birth to as many as 80 fry at one time.
		The Swordtail is an omnivore that will eat commercially prepared flaked foods and algae, as well as freeze-dried bloodworms, tubifex, and brine shrimp.
	www.peteducation.com /article.cfm?cls=16&cat=1947&articleid=2626 (245 words)

	Xiphophorus helleri - Swordtail by Gordon Mitchell
		My name is Sarah Swordtail and my mate's name is Stan, but he is not here at present.
		Hi my name is Sammy Swordtail and I’m the oldest of the bunch.
		She is a beautiful Gold Wag Swordtail and some of my siblings have her colouring, but some don’t.
	www.aquarticles.com /articles/breeding/mitchell_Swordtail.html (680 words)

	Swordtail - Xiphophorus hellerii
		Also of interest, the swordtail is very closely related to the Xiphophorus maculatus (platy) and cross breeding happens frequently, whether intentionally done for new color variations or whether they simply meet in the same tank for a drink.
		Swordtails are not aggressive except during competition for a single female by more than one male and the male platy may have a few playful joists with the male swordtails with the same intentions in mind.
		Swordtails are even, in my experience, more hardy than mollies, who I find to be finicky about water conditions and changes.
	www.aquahobby.com /gallery/e_sword.php (458 words)

	Pharyngula::Swordtail genes
		Xiphophorus, or the swordtail, is a popular aquarium fish in which the males have a prominent ventral extension of the tail, and the females do not.
		Basola AL (1990) Female preference predates the evolution of the sword in swordtail fish.
		Wilkins AS (2004) Deciphering the swordtail’s tail: a molecular and evolutionary quest.
	www.pharyngula.org /index/weblog/comments/swordtail_genes (634 words)

	Liverbearers Swordtail (Site not responding. Last check: )
		Most swordtails will grow to about 3 inches in an aquarium (not counting the male's tail extension), but I've seen pond-raised swordtails that were more than 5 inches in length.
		Because swordtails should be kept in groups, we have found than a 20 gallon is just about the minimum for a group of 5 fish..and the fry will need to be removed from that.
		Swordtails develop strict hiarchries in their communities...the alpha male will be the male with the largest sword and will defend "his" females in mostly ritualistic displays or aggressiveness.
	www.tropicalfauna.info /liverbearers-swordtail.htm (584 words)

	A Manual for Commercial Production of the Swordtail, Xiphophorus helleri
		However, since the majority of colored varieties of swordtails are from hybrids between a swordtail and platy it would be appropriate to have at least a working knowledge of the underlying mechanism of control.
		Remember that the total body length of the swordtail is measured from the tip of the snout to the end of the caudal fin.
		The size frequency distribution of 120 swordtails obtained at the end of the growout period is summarized in Fig.
	library.kcc.hawaii.edu /external/ctsa/publications/Swordtail.htm (3631 words)

	Swordtail
		Temperament: The Swordtail is a docile fish and it is therefore common in community tanks.
		Water conditions: The Swordtail originates from warm waters in Central America and the temperature in the aquarium should therefore be between 25 and 28 degrees C (77 and 82 degrees F).
		A female Swordtail grows larger than a male Swordtail, and her body is plumper.
	www.ryanstropicalfish.com /swordtail.php (238 words)

	- - Rosenthal Lab - Swordtail Research - -
		Swordtails, small poeciliid fishes endemic to the Atlantic drainages of Mesoamerica, get both their common and generic name from the conspicuous, sword-like ornament in males of many species.
		We use a variety of techniques ranging from molecular genetics of swordtail populations, to observations of mating behavior in the field, to playback of synthetic animations in the laboratory.
		Female swordtails have an ancestral mating preference for swords that appears to reflect a general bias for large apparent size.
	www.bio.tamu.edu /users/rosenthal/swordtails.htm (449 words)

	Animal Planet :: Fish Guide -- Swordtails
		The Swordtail requires a tank of at least 20 gallons that is well planted with plenty of room for swimming.
		The Swordtail is a livebearer and can give birth to as many as 80 fry at one time.
		The Swordtail is an omnivore that will eat commercially prepared flaked foods and algae, as well as freeze-dried bloodworms, tubifex, and brine shrimp.
	media.animal.discovery.com /guides/fish/freshwater/swordtail.html (271 words)

	Fish: swordtail breeding..
		I have noticed that my female swordtail has grown quite a belly and was wondering what other characteristics would she have that I could tell whether or not she is really pregnant?
		During my research online, I found a site that spoke of swordtail guppies, with no real info, just pics and I have noticed that my guppy spends a lot more time with her than the male swortail.
		Swordtail guppies are simply a strain of guppy that has a swordlike tail.
	en.allexperts.com /q/Fish-1472/swordtail-breeding-1.htm (639 words)

	Xiphophorus Helleri (Swordtail) - FishandTips.com
		Swordtails like brackish type waters and for this fish to thrive, it is recommended to add 1 tablespoon of salt per 5 gallon (although not required).
		Since then, Swordtails have become widely available and are now found under pretty much any shapes and colors (neon, lyretail, green albino, wagtail, marigold, highfin, spotted, tuxedo are just a few of them).
		However, when young, this diphormism is not always obvious and male Swordtails are well known to be late developpers.
	www.fishandtips.com /displaydb.php?ID=8 (1009 words)

	Swordtail \| Xiphophorus helleri
		PD: The Swordtail is an elongated species with a slender body.
		Swordtails are known for undergoing "sex-reversals," when females appear to become males.
		Swordtails are fish that are suitable for a beginner's community tank.
	fish.mongabay.com /species/Xiphophorus_helleri.html (508 words)

	The Pets Forums - Swordtail Basics
		The Swordtail, usually identified as Xiphophorus helleri, is one of the most popular of the livebearing fish in the hobby today.
		Swordtails are primarily found in rivers and streams, though some populations also occur in large lakes.
		There are many color varieties of Swordtails in the hobby today, as well as a couple of fin types.
	www.thepetsforums.com /forums/showthread.php?t=663 (1405 words)

	Swordtail fish balance courtship, threats - LiveScience - MSNBC.com
		To see what female swordtails found attractive, behavioral ecologist Heidi Fisher, who was investigating northern swordtails she collected in Mexico, tested the female fish against video animations of males.
		To see why male swordtails might flaunt an easily concealed large dorsal fin during courtship if females avoided males with large fins, Fisher and her colleague Gil Rosenthal tested males against video animations of other males.
		When paired male and female swordtails were confronted with another swordtail, the scientists also discovered that males raised their dorsal fins more frequently when courting in the presence of other males.
	www.msnbc.msn.com /id/15720845 (338 words)

	Tropical Fish for Freshwater Aquariums: Hi Fin Lyretail Swordtail Livebearer
		The Hi Fin Lyretail Swordtail is a fin variation of the Xiphophorus helleri Swordtail and is an easy-to-keep, peaceful, live-bearing fish, available in many color variations including red, yellow, and orange.
		The male Hi Fin Lyretail Swordtail has a feathery, lyre-shaped tail and flowing fins, with an extension on the lower part of their tails, resembling a sword. The fin variations of the female Lyretails are not as impressive. Hi Fin Lyretail Swordtails are jumpers, so be sure to provide an adequate cover over the aquarium.
		Hi Fin Lyretail Swordtails require a tank of at least 30 gallons that is well-planted with plenty of room for swimming.
	www.liveaquaria.com /product/prod_Display.cfm?pCatId=1099 (380 words)

	The Swordtail
		Swordtails are livebearers, who give birth to up to eighty fry which are born free-swimming.
		As swordtails will often eat the fry as they are born, lots of plants, especially floating ones, will give the tiny fish a chance to escape their parents depredations.
		Swordtails are hardy and resilient fish, which are not prone to any particular diseases, although in softer water or bad conditions they can occasionally suffer from white spot or fungus.
	www.tropicalfishfinder.co.uk /article_detail.asp?id=38 (667 words)

	Swordtail Profile, with care, maintenance requirements and breeding information for your tropical fish
		The males are elongated, with the adults having a long sword shaped Caudal fin extension formed from the eight lowermost fin rays.
		An interesting fact on Swordtails is their ability to change sexes.
		All young swordtails are female and if a potential male starts to develop early, he will continue to become a slender small male.
	badmanstropicalfish.com /profiles/profile27.html (918 words)

	Choosing a Molly, Guppy, Platy or Swordtail
		They are all natives of the tropical and sub-tropical regions of the western hemisphere, from Central to South America, where they live in small streams.
		While the wild species are colorful enough (Poecilia means many-colored), hobbyists and breeders have taken advantage of their easy breeding habits to create dozens of vibrantly colored varieties.
		Swordtails and platys have been interbred so much that sometimes there is little to distinguish one species from another, except the elongated sword-shaped fin of the male swordtail.
	www.petplace.com /fish/choosing-a-molly-guppy-platy-or-swordtail/page1.aspx (702 words)

	www.myspace.com/swordtailrecords
		Swordtail Records is a new label out of down under Australia.
		With Australia not having many progressive based labels at the moment, we here at Swordtail thought it was time to try and sort that problem out.
		In the mean time, we hope you enjoy what Swordtail Records has to offer the wonderful world of music.
	www.myspace.com /swordtailrecords (427 words)

	Aquarium Fish Deals - Livebearers - Swordtail Species (Swordtails) (Site not responding. Last check: )
		Possible tank mates for swordtails are Danios, Mollies, Platys, Tetras, Rasboras, Rainbowfish, Angelfish, Gouramis, Plecos, Corydoras Catfish, Clown Loaches, and hardier Tetras.
		Male swordtails need to be out numbered by the females in a ratio of at least two to one, otherwise your females will never get any rest!
		Swordtails are fairly peaceful but males can become aggressive toward each other.
	www.fishdeals.com /livebearers/swordtails (758 words)

	Green Swordtail Information & Care - Rate My Fish Tank
		A live-bearer, it is closely related to the southern platyfish or "platy" (X. maculatus) and can interbreed with it.
		The male green swordtail grows to a maximum overall length of 14 cm (5.5 in) and the female to 16 cm (6.3 in).
		The name "swordtail" derives form the elongated lower lobe of the male's caudal fin (tailfin).
	www.ratemyfishtank.com /freshwater_fish.php/5 (416 words)

	The Swordtail - Xiphophorus hellerii
		The Swordtail is a popular aquarium fish, especially among beginners.
		Swordtails often live in brackish waters, which is a combination of salt and fresh water.
		Swordtails, like almost all fish, prefer live foods like worms and larvae.
	www.aquariacentral.com /species/db.cgi?db=fresh&uid=default&ID=0539&view_records=1 (292 words)

	Female Preference Predates the Evolution of the Sword in Swordtail Fish -- Basolo 250 (4982): 808 -- Science
		The genus Xiphophorus consists of swordless platyfish and swordtails.
		that the common ancestor of platyfish and swordtails was swordless.
		Strong Reproductive Skew Among Males in the Multiply Mated Swordtail Xiphophorus multilineatus (Teleostei).
	www.sciencemag.org /cgi/content/short/250/4982/808 (512 words)

	Buy Swordtails for Sale at AquariumFish.net where Buying a Swordtail Fish Fun.
		Click here for more about buying a Swordtail Fish and other tropical fish from us.
		Click here for more information and advice about how to keep and care for Swordtails.
		Because we buy the best most colorful Swordtails available from the world's best fish farms.
	www.aquariumfish.net /catalog_pages/livebearer_swords/swordtail_table.htm (870 words)

	The Swordtail fish
		There is a hierarchy between Swordtails and only one male is the dominant one and could possibly harass the rest.
		Swordtails and other live-bearers produce much excrement, so you should buy a good filtration system and clear the bottom from time to time.
		Swordtails can adapt to new conditions but probably won`t reproduce.
	www.aqua-fish.net /show.php?cur_lang=2&what=article&id=108 (664 words)

	Fish and Aquatic Invertebrates » Freshwater Fish » Swordtail - Red Wag Main Page
		Red Wag Swordtails should not be put into tanks with fish that like to nip at fins, like Tiger Barbs.
		The lower part of the Red Wag Swordtail's tail fin is elongated, and has the appearance of a sword.
		The Green Swordtail was brought to Europe, where many varieties were produced, including the Red Wag Swordtail.
	www.centralpets.com /animals/fish/freshwater_fish/fwf4617.html (437 words)

	Livebearer Fish - Guppy, Molly, Platy, Swordtail
		The guppy, platy, swordtail, and mollies are the mainstays of the freshwater world and the ease of breeding them has been implicated as one of the primary causes of a problem amongst fish keepers known as MTS or Multiple Tank Syndrome.
		This syndrome is not life threatening but it has been known to cause problems in smaller homes.
		Please be responsible with your fish and keep the males and females separated, only get one gender or be prepared to deal with the large numbers of fish that will be coming your way.
	www.fishlore.com /profiles-livebearers.htm (260 words)

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