Description
🐟 Dark Knight Guppy (Poecilia reticulata)
📌 Basic Info
Scientific Name: Poecilia reticulata
Family: Poeciliidae
Origin: Selectively bred (aquarium strain)
Size: 1.5 – 2.5 inches (3.5 – 6 cm)
Lifespan: 2 – 3 years
Tank Zone: Mid to top swimmers
🌊 Water Parameters
TDS: 200 – 400 ppm
pH: 6.8 – 7.8
Temperature: 22 – 28°C (72 – 82°F)
Hardness: 8 – 20 dGH
🐟 Characteristics
Striking jet-black body with metallic blue or green highlights, giving them a bold “knight” look.
Males are smaller, sleek, and show intense coloration; females are larger with subtler shades.
Peaceful, hardy, and active – perfect for community aquariums.
Highly sought after by guppy breeders for their rare, dark beauty.
Livebearers – females produce free-swimming fry.
🍽️ Food
Type: Omnivorous
Diet: High-quality flakes, micro pellets, brine shrimp, daphnia, bloodworms, spirulina, blanched spinach/zucchini.
Feeding: 1–2 times daily in small portions.
🛠️ Maintenance
Tank Size: Minimum 10 gallons (larger is better for groups).
Filtration: Gentle sponge filter or low-flow system.
Decor: Plants, caves, and open swimming spaces.
Water Change: 25–30% weekly for healthy growth.
👥 Social Behavior
Minimum Group Size: At least 1 male with 2–3 females (to avoid stressing females).
Tank Mates: Other guppies, Platies, Mollies, Swordtails, Rasboras, Corydoras, Tetras, Shrimp.
Avoid: Aggressive or fin-nipping fish (Tiger Barbs, Bettas, large Cichlids).
✅ Do’s
Provide plants for fry to hide.
Keep stable water for deep, dark coloration.
Use proper male-to-female ratios to reduce stress.
❌ Don’ts
Don’t overcrowd – they breed quickly.
Don’t mix with aggressive or fin-nipping species.
Don’t neglect regular water changes.
⭐ Quick Tips
Unique for their velvety black coloration with royal shine.
Easy to breed – females give birth to 20–40 fry every month.
Excellent choice for both beginners and collectors of rare guppy strains.
