Blackfin Pearl Killifish
Austrolebias nigripinnis
Blackfin Pearl Killifish is a bottom-to-middle swimmer.
Save this fish or add it directly to one of your aquariums.
Quick facts
- Adult size
- ≤ 5 cm (≤ 2 in)
- Aquarium size
- 20 L or larger / ≥ 30 cm (≥ 11.8 in) minimum length
- Care level
- Beginner – Intermediate
- Temperament
- Semi-Aggressive
- Swimming zone
- Bottom to middle swimmer
- Temperature
- 17–23 °C
- pH
- 6–7
- GH
- 5–20 dGH
- KH
- 1–8 dKH
- Diet
- Omnivore
- Lifespan
- up to 5 years
Care requirements
Care level: Beginner – Intermediate.
Lifespan: up to 5 years.
Aquarium size and space needs
Minimum aquarium size: 20 L or larger / ≥ 30 cm (≥ 11.8 in) minimum length. Plan the layout and stocking within that limit.
Water parameters
Suitable water: temperature 17–23 °C, pH 6–7, GH 5–20 dGH, KH 1–8 dKH.
Temperament and compatibility
Blackfin Pearl Killifish needs careful companion choice because it can be territorial or semi-aggressive.
Swimming zone and behavior
This fish uses the lower to middle part of the aquarium, so leave enough open substrate area for movement and feeding.
Feeding
As an omnivore, Blackfin Pearl Killifish should receive a varied diet rather than one repeated food type.
Make sure food reaches the substrate before faster fish take it.
Natural habitat and origin
Origin: Argentina.
Before adding this fish
- Plan for an aquarium of 20 L or larger / ≥ 30 cm (≥ 11.8 in) minimum length.
- Choose other fish carefully around this temperament.
- Offer a varied diet suitable for an omnivorous bottom-dwelling fish.
Similar fish profiles
Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.
FAQ
How large does Blackfin Pearl Killifish get?
Blackfin Pearl Killifish reaches ≤ 5 cm (≤ 2 in).
What aquarium size does Blackfin Pearl Killifish need?
Use an aquarium of at least 20 L or larger / ≥ 30 cm (≥ 11.8 in) minimum length.
Is Blackfin Pearl Killifish peaceful?
Blackfin Pearl Killifish needs more careful companion choice because the temperament data points toward boundaries, space, or similar-sized fish.
What temperature is suitable for Blackfin Pearl Killifish?
Keep it between 17 to 23 °C.