Southern Platy

Xiphophorus maculatus

Southern Platy (Xiphophorus maculatus) — Easy care, Semi-aggressive, under Livebearer & Killifish. Minimum tank in the app: 14.5 US gal min; aim for 68–79°F and pH 6.8–8.2. The Southern Platy is an engaging choice for both novice and experienced aquarists due to its vibrant colors and lively behavior.

Southern Platy (Xiphophorus maculatus) in a planted freshwater aquarium
Care levelEasy
TemperamentSemi-aggressive
Min tank size14.5 US gal min
pH range6.8–8.2
Temperature68–79°F
Max size2.8 in (7.0 cm)
Captive lifespan2–5 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Americas / Africa (varies)

  • Africa
  • South America
  • Central America & Mexico

Regional colours match the stocking calculator’s origin map.

Southern Platy Tank Setup

Create a balanced environment that provides ample swimming space alongside strategic cover. Incorporating plants, rocks, and driftwood can enhance their comfort and mimic natural habitats. Ensure moderate water flow and consider varied substrate to encourage foraging behaviors, with lighting that highlights their colors without causing excess glare.

What Do Southern Platys Eat?

As omnivores, Southern Platys are generally enthusiastic eaters, but competition can arise during feeding times. Offering a varied diet is key to maintaining their health and vibrancy; however, ensure that food reaches all fish, as faster eaters may dominate.

Southern Platy Tank Mates

Ideal tank mates include similarly sized, peaceful species that occupy different swim zones or have complementary temperaments. Be wary of aggressive species or overly timid ones that might be bullied or stressed. When housed together, ensure groups of Southern Platys are large enough to diffuse aggression, promoting a harmonious community.

Are Southern Platys Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the need for groups of at least six Southern Platys, leading to stress and erratic behavior in smaller numbers. neglecting water quality or failing to provide sufficient cover can exacerbate aggression and territorial disputes among fish, resulting in a less stable environment.

Guides that pair with this fish

Browse species guides · Water parameters cheat sheet

Building a community? Run the full list through the stocking calculator before you add anything else.

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