Aphyosemion poliaki 3-4cm

The Aphyosemion poliaki is a rare and vibrantly colored killifish species from Central Africa, admired for its bright blue body, red reticulated pattern, and elegant fin extensions. Growing to 3–4cm, this species is perfect for nano aquariums or species-only tanks, especially those designed to simulate soft, acidic forest streams. Males are more colorful and elongated, while females are smaller and more subtle in appearance.

Discovered in Gabon, Aphyosemion poliaki is part of the Aphyosemion elegans group, and it thrives in calm waters, shaded environments, and well-structured aquascapes. It is an ideal fish for killifish enthusiasts and aquarists who appreciate both beauty and breeding potential.

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🐠 Key Features:

• Scientific Name: Aphyosemion poliaki

• Common Name: Poliaki Killifish

• Size: 3–4cm (adult)

• Lifespan: 2–3 years

• Temperament: Peaceful, shy

• Difficulty Level: Moderate

• Origin: Gabon, Central Africa

• Best kept in pairs or trios (1 male + 2 females) or as a small group in species tanks

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🌊 Water Conditions

Aphyosemion poliaki prefers soft, acidic water and still or slow-moving environments.

• Temperature: 20–24°C (68–75°F)

• pH: 5.5–6.5

• Hardness: 1–6 dGH

• Tank Size: 10–15 gallons minimum for a trio

• Water Type: Freshwater

• Filtration: Sponge filter or very gentle flow

• Lighting: Low to moderate; shaded light enhances natural behavior

Replicate their native habitat with leaf litter, mosses, and dense plantings, including floating plants to diffuse light.

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🐟 Tank Mates

Poliaki Killifish are best in species-only setups, but may be kept with other gentle, slow-moving species.

If mixed with tank mates, choose:

• Pygmy Corydoras

• Otocinclus

• Ember or Chili Rasboras

• Dwarf shrimp (with caution)

• Peaceful snails (Nerite, Mystery)

Avoid:

• Aggressive or nippy fish

• Large or fast-swimming species

• Tanks with high flow or intense lighting

They thrive when left undisturbed and in small groups, where they can display natural behavior.

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🍽️ Feeding Habits

Aphyosemion poliaki are micropredators that prefer live and frozen foods.

Recommended diet:

• Live baby brine shrimp

• Daphnia, grindal worms, vinegar eels

• Frozen bloodworms, cyclops, or micro plankton

• High-quality micro pellets or soft granules

• Finely crushed flake food (optional)

Feed once or twice daily in small amounts. They are surface-oriented feeders and enjoy slowly drifting foods.

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🧼 Care and Maintenance

• Perform regular water changes (15–25% weekly)

• Maintain stable water temperature and pH

• Use a tight lid—killifish are excellent jumpers

• Provide plenty of cover and shaded zones

• Avoid sudden changes in water chemistry

This species can be bred in captivity, especially when given spawning mops or fine-leaved plants. Eggs are usually deposited and can be gently harvested.

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🌿 Why Choose Aphyosemion poliaki?

The Aphyosemion poliaki is a true gem for aquarists who seek unique beauty in a peaceful, manageable fish. Its red-and-blue pattern, gentle nature, and suitability for natural-style tanks make it a standout in any nano or planted aquarium.