Skip to content
Knife Livebearer, photographed on a transparent background
Photo: Livebearerguy · CC BY-SA 4.0

FreshwaterComing soonCommon

Knife Livebearer

Alfaro cultratus

The Knife Livebearer (Alfaro cultratus) is a tropical freshwater fish of the family Poeciliidae. It grows to 7.5 cm (total length). The IUCN Red List rates it Least Concern. In the aquarium it is kept at 24–28 °C.

Size
7.5 cmtotal length
Temperature
24–28 °C
pH
6.0–8.0
Climate zone
Tropical

In the aquarium

Temperature24–28 °C
pH6.0–8.0
Hardness5–20 °dGH

In the wild

Water type
Freshwater
Climate zone
Tropical

Conservation status

Classification

  1. OrderCyprinodontiformes
  2. FamilyPoeciliidae
  3. GenusAlfaro
  4. SpeciesAlfaro cultratus

Quick answers

Knife Livebearer size: how big does it get?
It grows to 7.5 cm (total length).
Knife Livebearer water parameters: what does it need?
Temperature 24–28 °C, pH 6.0–8.0, hardness 5–20 °dGH.
Knife Livebearer: is it endangered?
The IUCN Red List rates it Least Concern.

All species A–Z

Sources

The figures on this page are compiled from the references below.