The Aplocheilus myersi, commonly known as Myers' Killifish, is a small, surface-dwelling freshwater fish native to the slow-moving waters and rice paddies of Southeast Asia, particularly in Thailand and surrounding regions. Known for its stunning colors and ease of care, this species is a fantastic addition to peaceful community or species-only aquariums.
🐠 Appearance:
Size: Grows up to 2.5–3 inches (6–7.5 cm) in length.
Coloration: Features a sleek, elongated body with metallic green, gold, or blue iridescence, depending on the light.
Fins: Often displays orange or red hues on the edges of its dorsal, anal, and caudal fins, with subtle black markings.
Eyes: Large, reflective eyes that give it a charming, alert appearance.
🌿 Tank Requirements:
Tank Size: Minimum 15–20 gallons for a small group.
Water Parameters:
Temperature: 72–79°F (22–26°C)
pH: 6.5–7.5
Water Hardness: Soft to moderately hard
Environment:
Prefers a well-planted tank with plenty of floating plants to create shade.
A tight-fitting lid is essential due to its jumping tendencies.
Needs slow water flow to mimic natural habitats.
🏡 Behavior & Compatibility:
Temperament:Peaceful but predatory, especially toward small invertebrates.
Tankmates: Best kept with small, peaceful fish such as tetras, rasboras, and peaceful bottom dwellers. Avoid keeping with very small shrimp or fry.
Social Behavior: Can be kept in pairs or small groups with 1 male to multiple females to prevent aggression.
🍤 Diet:
Carnivorous: Prefers live or frozen foods such as brine shrimp, daphnia, mosquito larvae, and bloodworms.
In Captivity: Will accept high-quality pellets and flakes, but a protein-rich diet brings out the best colors.
🧑🍼 Breeding:
Egg Layers: Lays eggs on fine-leafed plants or spawning mops.
Incubation Period: Eggs hatch in 10–14 days depending on temperature.
Fry Care: Fry should be fed with infusoria or baby brine shrimp.
The Aplocheilus myersi Killifish is ideal for aquarists seeking a colorful, surface-dwelling fish with interesting behavior and minimal care requirements. Its iridescent beauty and calm demeanor make it a standout in peaceful community tanks.
