Baby Swordtail (Xiphophorus hellerii) Care Guide:
Baby Swordtails, or fry, are lively and fast-growing livebearers that need clean, warm water and plenty of hiding places to thrive. They should be raised in a nursery or well-planted tank to protect them from being eaten by adult fish. Ideal water conditions include a temperature of 76–82°F (24–28°C), pH 7.0–8.0, and moderate hardness. Baby Swordtails should be fed small, frequent meals of high-quality crushed flakes, baby brine shrimp, microworms, or powdered fry food to support growth. Regular water changes and gentle filtration help maintain water quality. As they mature, males develop their characteristic sword-like tail, and they can be introduced into community tanks once large enough to avoid predation.
Aspect
Details
Scientific Name
Xiphophorus hellerii
Common Name
Baby Swordtail / Swordtail Fry
Origin
Central America (Mexico to Honduras)
Size
Up to 0.5 inch (1.2 cm) as fry; adults up to 4–6 inches (10–15 cm)
Tank Size
Minimum 5–10 gallons for fry group
Temperature
76–82°F (24–28°C)
pH
7.0–8.0
Water Hardness
10–20 dGH
Diet
Crushed flakes, powdered fry food, baby brine shrimp, microworms
Temperament
Peaceful
Tank Setup
Plants or breeding grass for cover, gentle filtration
Lifespan
3–5 years (as adults)
Compatibility
Safe with small, peaceful fish once grown