Swordtail
Xiphophorus hellerii
Intermediate
Freshwater
Peaceful, active, lives in small groups. Omnivorous (plants, small crustaceans, insects). Males can be aggressive toward each other.
Poeciliidae
Max Size
16.0 cm (6.3")
Min Tank
200 L (53 gal)
Min Group
3+
Diet
Omnivore - food, algae, larvae
Water Parameters
Temperature
21.0-26.0°C
70-79°F
pH
7.0-8.0
Hardness (dGH)
10.0-15.0
Min Tank Size
200 L
53 gal
About
Can hybridize with Xiphophorus maculatus (platy). Males have a sword‑shaped extension on the caudal fin. Invasive species in some areas due to its high reproductive capacity.
Behavior & Temperament
Peaceful, active, lives in small groups. Omnivorous (plants, small crustaceans, insects). Males can be aggressive toward each other.
Feeding
Omnivore - food, algae, larvae
Breeding
Ovoviviparous. Gestation lasts 28 days, 20–100 fry. No parental care. Females can store sperm. Easy to breed in an aquarium.
Care Notes
Sensitive to ammonia. Needs hiding spots
Compatibility
Best kept alone or with similar species
Quick Summary
| Scientific Name | Xiphophorus hellerii |
|---|---|
| Family | Poeciliidae |
| Category | Fish |
| Care Level | Intermediate |
| Water Type | Freshwater |
| Max Size | 16.0 cm (6.3") |
| Min Tank | 200 L (53 gal) |
| Min Group | 3+ |
| Diet | Omnivore - food, algae, larvae |
| Temperament | Peaceful, active, lives in small groups. Omnivorous (plants, small crustaceans, insects). Males can be aggressive toward each other. |
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