Aphyosemion P82 Steel Blue Killifish (3–4cm) is a rare, metallic blue gem with peaceful nature—perfect for planted aquariums and species breeding setups.

The Aphyosemion P82, also known as the Steel Blue Killifish, is a captivating freshwater species admired for its metallic blue shimmer, vivid red markings, and delicate fin extensions. Reaching 3–4cm, these killifish are small, peaceful, and perfect for aquarists who enjoy the elegance of rare and colorful species in quiet, natural aquariums.

Originating from West and Central Africa, particularly Gabon or Cameroon depending on the collection site, the P82 line of Aphyosemion is especially popular among killifish breeders for its distinct appearance and potential for home spawning. These fish thrive in soft, slightly acidic waters, densely planted tanks, and low-light environments.

🐠 Key Features:

• Scientific Name: Aphyosemion sp. (P82 lineage)

• Common Name: Steel Blue Killifish

• Size: 3–4cm (adult)

• Lifespan: 2–3 years

• Temperament: Peaceful, shy

• Difficulty Level: Moderate

• Origin: West-Central Africa (Gabon/Cameroon)

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

🌊 Water Conditions

Steel Blue Killifish require soft, clean, and stable water conditions with minimal flow.

• Temperature: 20–24°C (68–75°F)

• pH: 5.5–6.8

• Hardness: 1–8 dGH

• Tank Size: 10–15 gallons for a pair or trio

• Water Type: Freshwater

• Filtration: Gentle sponge filter preferred

• Lighting: Low to moderate; floating plants help diffuse light

To replicate their natural habitat, include fine-leaved plants, mosses, leaf litter, and floating vegetation.

🐟 Tank Mates

While best suited for species-only tanks, these peaceful fish may coexist with a few carefully chosen tank mates.

Compatible tank mates:

• Pygmy Corydoras

• Otocinclus

• Chili Rasboras

• Ember Tetras

• Shrimp (with caution)

• Peaceful snails (Nerite, Mystery)

Avoid:

• Fast swimmers or fin nippers

• Aggressive or large fish

• High-flow setups or tanks with strong lighting

For best health and display, keep them in a quiet, undisturbed environment.

🍽️ Feeding Habits

Aphyosemion P82 are micropredators with a strong preference for live or frozen foods.

Ideal diet:

• Baby brine shrimp

• Daphnia, vinegar eels, microworms

• Frozen bloodworms or cyclops

• Soft micro pellets or powdered food

• Finely crushed flakes (supplementary)

Feed 1–2 times daily, ensuring food reaches the mid- to upper-water column where they naturally feed.

🧼 Care and Maintenance

• Weekly water changes (15–25%)

• Use soft, dechlorinated water with stable parameters

• Keep a tight-fitting lid—killifish are known jumpers

• Provide lots of cover with plants and low lighting

• Include spawning mops or moss for potential breeding

Steel Blue Killifish are annual spawners in the wild, but in aquariums, they can be bred year-round under stable conditions.

🌿 Why Choose Aphyosemion P82 Steel Blue Killifish?

The Aphyosemion P82 Steel Blue Killifish is a rare, vivid jewel for planted aquariums. Its reflective steel-blue body and red accents, combined with gentle personality and manageable care needs, make it an excellent choice for aquarists seeking beauty and uniqueness in a peaceful species tank.

Bring rare elegance and color to your aquarium—discover the Aphyosemion P82 today!