Swordtail (female) Tropical Fish Information

Xiphophorus hellerii
Swordtail (female)
Behaviour Peaceful
Typical size 10cm
Max size 12cm
Tank Area Middle, top
Min Tank Size 75cm
Temp Min: 22℃ Max: 28℃
Feeding Flake, frozen, live foods
pH Range 7-8.5
Hardness s,m,h,vh
Female Swordtail Xiphophorus hellerii
  • Female Swordtail Xiphophorus hellerii - thumbnail
  • Female Swordtail Xiphophorus hellerii - thumbnail

Swordtail (female) (Xiphophorus hellerii)

Swordtail (female) Tropical Fish Learn all about the Swordtail (female)'s feeding habits and food types, its behaviour, its origins, its natural habitats, is it male or female, breeding advice and information, suitable tank mates, its sizing and growth range, minimum tank size, water PH and more. Use our fish community creator tool to plan your tank set up and ensure that the Swordtail (female) is the right fish for your aquarium.

There are many colour morphs of the Swordtail available and it is a deservedly popular aquarium fish. Swordtails are active, colourful, hardy, and in most cases good-natured making them an ideal fish for beginners or community aquariums. Some swordtails are starting to show the telltale signs of intensive breeding and a drop in natural immunity. To counter this, a little aquarium salt added to the water will increase the fish's disease resistance. If Males and females are kept together, several females should be kept to each male to avoid females becoming stressed by harassment. It is quite common for young females to appear to turn into males as they age, in some cases this is a true sex reversal although in most it is simply a male that has not yet matured. Provide a few hiding spots amongst plants and mix with other similar sized fish.

Swordtail (female) Facts

Family Poeciliidae (Poeciliids) | Synonyms Mollienisia helleri, Poecilia helleri, Xiphophorus guentheri, X. guntheri, X. hellerii guentheri, X. jalapae, X. brevis, X. strigatus, X. ranchovii | Other names Green Swordtail, Red Swordtail | Origin North and Central America | Breeding Livebearer, females are fertilized internally | Natural Water Conditions pH 7-8, soft to hard, freshwater and brackish | Natural Habitat Heavily vegetated flowing waters, streams, rivers, pools, springs | Sexing Males are smaller, slender and have a pointed anal fin. Only males develop the 'sword' extension to the caudal fin



Swordtail (female) Help and Advice

If you have a question about keeping Swordtail (female)'s then please use our Swordtail (female) help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them caring for and keeping fish like these.


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Check tank mates for the Swordtail (female) fish species

You are in the thinkfish community creator for the Swordtail (female) fish species, you can learn all about how the tool works in assessing fish tank mate compatibility at the link provided or use the tool tips provided to guide you. Create a test fish community that includes the Swordtail (female) species and any other types of fish or crustacean you'd like to introduce - You can assess the best companions, tank size suitability, stocking levels based on filter type and volume and possible negative interactions and warnings as you build up your aquarium.

Please do check your water type for compatibility with your fish, which can be found on the Swordtail (female) information box above and your local water company providers website. Don't waste your money and endanger your fish!
Tank Details
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