Save the Little Fish

Saving the world’s tropical fish, one tank at a time.

Sign in

Freshwater fishes

The fish list

499 species, each with the water it needs, who it gets along with, and where it comes from. Find one, or browse by family, genus or river.

EndangeredRarePopularPeacefulSmall (6 cm or less)Calm waterStrong flowSchoolingL-numbersWith photo Basic profiles too
Showing: Genus: Xiphophorus ✕

Xiphophorus 2 fish

Swordtail

Swordtail ≈

Livebearers · XiphophorusStaple

  • 22–28°C
  • pH 7–8.3
  • Gentle
  • 5 in
  • Mid/top
  • Mixed
  • Semi-agg.!
  • 3+ group
Rivers of Mexico and Central America

Swordtail

Xiphophorus hellerii

Rivers of Mexico and Central America · river

Temperature
22–28°C
pH
7–8.3
Adult size
5 in · 12 cm
Flow
Gentle
Swims
Mid-water and top
Temperament
Semi-aggressive
Diet
Omnivore
Group
3+
Typical price
$3–7
Rarity
Pet-store staple
View full profile

Photo: Wojciech J. Płuciennik, CC BY-SA 4.0

Platy

Give us a picture and get credit! ≈

Livebearers · XiphophorusStaple

  • 20–26°C
  • pH 7–8.2
  • Calm
  • 2 in
  • Mid/top
  • Mixed
  • Peaceful
  • 3+ group
Atlantic slope of Mexico and Central America

Platy

Xiphophorus maculatus

Atlantic slope of Mexico and Central America · stream

Temperature
20–26°C
pH
7–8.2
Adult size
2 in · 5 cm
Flow
Calm
Swims
Mid-water and top
Temperament
Peaceful
Diet
Omnivore
Group
3+
Typical price
$2–5
Rarity
Pet-store staple
View full profile

Showing 2 of 2