Variatus Platy (Xiphophorus variatus) is a beginner-level freshwater fish that needs at least 20 gallons and 68-79°F. A hardy, colorful livebearer that tolerates cooler water than many tropical fish. Males chase females constantly, so keep two or three females per male, and expect fry in a planted tank.

Care facts at a glance

Scientific nameXiphophorus variatus
FamilyPoeciliidae
OriginEastern Mexico
Adult size2.5-3 in
Minimum tank20 gallons
Temperature68-79°F
pH7.0-8.2
TemperamentPeaceful, active
Social behaviorGroups with more females than males
Swim levelAll levels
DifficultyBeginner
DietOmnivore: flakes, micro pellets, frozen foods, blanched vegetables or algae
Typical lifespan3-4 years

Quick tips

  • Keep more females than males.
  • Prefers harder, neutral to alkaline water, which suits San Diego tap water.
  • Give it plants and cover so fry and females can rest.

San Diego water

Naturally suited to San Diego's hard, alkaline tap water once it is dechlorinated (the city uses chloramine, so use a conditioner that handles it). Learn the numbers in our San Diego tap water guide.

Before you buy

Make sure your tank is cycled (how to cycle a tank), check your numbers with the water testing guide, and use the compatibility guide to check tankmates. These are general ranges; individual fish and local water vary.

Find it at Pet Zone

Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.

Pet Zone Convoy

4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm

Aquascaping, planted tanks

Pet Zone Mid-City

4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm

Monster fish, koi