The Aphyosemion australe, commonly known as the Lyretail Killifish, is one of the most popular and widely kept killifish species. Native to Gabon and nearby regions in Central Africa, this peaceful fish is loved for its graceful lyre-shaped tail, striking coloration, and easy care requirements, making it suitable for both beginners and experienced aquarists.

Reaching 3–4cm in length, this species comes in several color varieties—including the classic wild-type chocolate, gold, and orange (also known as A. australe 'Orange'). Whether in a community tank or a species-only breeding setup, the Lyretail Killifish adds elegance, color, and character to any freshwater aquarium.

🐠 Key Features:

• Scientific Name: Aphyosemion australe

• Common Name: Lyretail Killifish

• Size: 3–4cm

• Lifespan: 2–3 years

• Temperament: Peaceful, active but non-aggressive

• Difficulty Level: Easy to Moderate

• Origin: Central Africa (Gabon)

• Best kept in pairs or trios (1 male + 2 females) or in small, peaceful setups

🌊 Water Conditions

Aphyosemion australe thrives in soft, slightly acidic water and planted aquariums with low to moderate lighting.

• Temperature: 20–24°C (68–75°F)

• pH: 6.0–7.0

• Hardness: 2–10 dGH

• Tank Size: 10+ gallons

• Water Type: Freshwater

• Filtration: Sponge filter or gentle flow

• Lighting: Low to moderate (floating plants help reduce stress)

Aquascapes with fine-leaved plants, moss, driftwood, and dark substrates help showcase their color and promote natural behaviors.

🐟 Tank Mates

Lyretail Killifish are peaceful and can be housed with other gentle species, though they also do well in species-only setups.

Compatible tank mates:

• Pygmy Corydoras

• Otocinclus

• Ember Tetras

• Chili Rasboras

• Peaceful snails (Nerites, Mystery)

• Dwarf shrimp (with caution)

Avoid:

• Fin-nippers

• Large or aggressive fish

• Fast, dominant species that may outcompete for food

They are top- to mid-level swimmers and prefer calm waters with visual barriers.

🍽️ Feeding Habits

Aphyosemion australe are micropredators, naturally feeding on small insects and zooplankton.

Ideal foods include:

• Live/frozen baby brine shrimp

• Daphnia, bloodworms, or cyclops

• Microworms or vinegar eels

• High-quality micro pellets

• Finely crushed flakes

Feed 1–2 times daily in small portions, targeting surface and mid-water areas where they feed naturally.

🧼 Care and Breeding

One of the easiest killifish to breed, A. australe can reproduce in well-maintained aquariums without much intervention.

✅ Breeding tips:

• Use spawning mops or moss

• Eggs are laid daily and can be collected or left to hatch naturally

• Eggs hatch in 2–3 weeks in warm water

• Feed fry with infusoria or baby brine shrimp

Perform weekly water changes (20–25%) and ensure a secure lid—they’re active jumpers.

🌿 Why Choose Aphyosemion australe?

The Lyretail Killifish offers a perfect mix of beauty, personality, and accessibility. With its flowing tail, stunning colors, and peaceful nature, it's ideal for nano tanks, planted aquariums, and hobbyist breeding projects alike.

Add grace and color to your aquarium—bring home Aphyosemion australe today!