Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. The many Xiphophorus species are all called either platyfish (or platies) or swordtails. The type species is X. hellerii, the green swordtail. Male green swordtails have a long “sword” on their tails. Females have a fan shaped anal fin and males have a stick shaped anal fin (gonopodium). Males are larger in length than females, up to 17.8cm (7″) if you include the sword. Xiphophorus needs well planted with open swimming spaces, and multiple hiding places are essential. Mid-swimming fish that are generally peaceful, but males can become aggressive with each other. Keep at least two females per male to keep the males from fighting. It is possible to keep an all male tank but you should have at least 4-5 and expect to have to watch for “bully” fish. Swordtails can hybridize with Platys, and if they are kept in a mixed tank male Swordtails will pursue female Platys and visa versa. A variety of foods accepted including pellets, flake, daphnia, frozen tubifex worms and brine shrimp. They also like to eat some blanched vegetables like courgette, cucumber or lettuce.
|Adult Size:||17.8 cm including the tail|
|Purchasing size:||3 – 4 cm|
|Temperature:||64°-82° F (17.8°- 27.8° C)|
|pH range:||7.0 – 8.3|
|Hardness：||12 — 30|
|Minimum tank size:||20 gallon|