Knife Livebearer Care Guide
Alfaro cultratus
Stocking Calculator
Bioload Score
1000
PeacefulModerateFreshwater
- Max Size
- 12.0 cm / 4.7"
- Temperature
- 22–28°C (72–82°F)
- pH Range
- 7.0 – 8.0
- Min Tank Size
- 60L (16 gal)
- Min Group Size
- 10 fish
- Tank Level
- Bottom
- Origin
- Central America
- Temperament
- Peaceful
- Difficulty
- Moderate
- Breeding Difficulty
- Easy
Diet
Omnivorous; feeds on algae, microorganisms, and prepared foods.
Community Compatibility
Well-suited for community tanks with other peaceful, similarly sized fish.
Good to Know
Knife Livebearers are unique for their ability to 'glide' through the water, adding a dynamic presence to the tank.
Gender Differences
Males have a distinctive gonopodium.
Stock Knife Livebearer in Your Tank
Use our free stocking calculator to see if Knife Livebearer fits your aquarium