Schlesers Longfin Killifish

Aphyolebias schleseri

Schlesers Longfin Killifish is a peaceful middle-to-top swimmer.

PeacefulMiddle to top swimmerBeginner – Intermediate

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Quick facts

Adult size: ≤ 2" (≤ 5 cm)
Aquarium size: 11 US gal (40 L) or larger
Care level: Beginner – Intermediate
Temperament: Peaceful
Swimming zone: Middle to top swimmer
Temperature: 72–79°F (22–26°C)
pH: 6–7
GH: 5–15 dGH
Diet: Omnivore
Lifespan: up to 1.5 years

Care requirements

Care level: Beginner – Intermediate.

Lifespan: up to 1.5 years.

Aquarium size and space needs

Minimum aquarium size: 11 US gal (40 L) or larger. Choose an aquarium that meets the listed minimum requirements.

Water parameters

Suitable water: temperature 22–26 °C, pH 6–7, GH 5–15 dGH.

Temperament and compatibility

Schlesers Longfin Killifish is peaceful and suits calm community fish.

Swimming zone and behavior

This fish uses the middle to upper part of the aquarium, so leave enough open swimming space for movement and feeding.

Before adding this fish

Plan for an aquarium of 11 US gal (40 L) or larger.
Avoid aggressive or highly competitive fish.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: Peru.

Similar fish profiles

Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.

Black Phantom Tetra Megalamphodus megalopterus Similar care level Same temperament Same swimming zone Beginner – Intermediate ≤ 2" (≤ 5 cm) 72–82°F (22–28°C) Black-belt Tetra Hemigrammus kuroobi Similar care level Same temperament Same swimming zone Beginner – Intermediate ≤ 2" (≤ 5 cm) 75–82°F (24–28°C) Bleeding Blue Tetra Hyphessobrycon margitae Similar care level Same temperament Same swimming zone Beginner – Intermediate 1.6–2" (4–5 cm) 73–79°F (23–26°C) Blue Striped Rivulus Killifish Rivulus xiphidius Same family Similar care level Same temperament Beginner – Intermediate ≤ 1.8" (≤ 4.5 cm) 72–77°F (22–25°C) Aureofuscus Goby Stiphodon aureofuscus Similar care level Same temperament Bottom dweller Beginner – Intermediate ≤ 1.1" (≤ 2.8 cm) 72–79°F (22–26°C) Blackfin Pearl Killifish Austrolebias nigripinnis Same family Similar care level Bottom dweller Beginner – Intermediate ≤ 1.8" (≤ 4.5 cm) 64–72°F (18–22°C)

FAQ

How large does Schlesers Longfin Killifish get?

Schlesers Longfin Killifish reaches ≤ 2" (≤ 5 cm).

What aquarium size does Schlesers Longfin Killifish need?

Use an aquarium of at least 11 US gal (40 L) or larger.

Is Schlesers Longfin Killifish peaceful?

Yes. Schlesers Longfin Killifish is generally peaceful. Choose calm companions that won’t harass it or crowd it out at feeding time.

What temperature is suitable for Schlesers Longfin Killifish?

Keep it between 22 to 26 °C.