4-5” Giant Featherback Knife Fish ( Chitala Lopis )

⚔️ Giant Featherback Knife Fish (4–5”) – Rare Predator with Ancient Elegance

Introduce a true freshwater oddball to your monster tank with the elusive Giant Featherback Knife Fish (Chitala lopis), one of the most mysterious and least commonly seen species in the knife fish family. At 4–5 inches, this juvenile is the perfect grow-out size, ready to become a graceful but powerful predator in your collection.

Unlike the more common Clown Knife, Chitala lopis features a sleeker body, reduced or absent ocelli (eye spots), and a more primitive appearance, making it a favorite among experienced oddball and predator fish keepers.

This species is extremely rare in the trade, and even more rare at a healthy, stable juvenile size—making this listing a unique opportunity for serious collectors.

🐟 Species Profile:

• Scientific Name: Chitala lopis

• Common Name: Giant Featherback, Indonesian Featherback Knife Fish

• Size: 4–5 inches (can grow to 36 inches or more)

• Temperament: Semi-aggressive, predatory, solitary

• Tank Size: 200+ gallons (300+ for adults)

• Water Parameters: 76–82°F | pH 6.5–7.5 | Moderate flow, low light preferred

• Diet: Carnivore – thrives on shrimp, worms, small fish, and soft sinking pellets (can be pellet-trained)

⚠️ Care Notes & Tank Mates:

The Giant Featherback is a nocturnal ambush predator and needs:

• Dim lighting or blackwater-style setups

• Open swimming space with minimal sharp décor

• Secure lids—they’re known jumpers

Best suited for:

• Solo displays or with similarly sized and tempered tank mates like:

  • Large Bichirs, Arowanas, Datnoids, Ripsaw Catfish

  • Avoid overly aggressive cichlids or anything small enough to swallow

Featherbacks are shy when young but quickly learn feeding routines and often interact with their owners. Their graceful undulating swimming and prehistoric look make them one of the most captivating monster fish in the hobby.

🛒 Why Buy from RobsAquatics.com?

Each 4–5” Chitala lopis is:

• ✅ Extremely rare and carefully sourced

• ✅ Feeding on frozen and soft prepared foods

• ✅ Shipped live with our Live Arrival Guarantee

• ✅ A true collector’s fish, ideal for predator tanks or public display builds

📦 Very limited availability – the Giant Featherback is one of the rarest knife fish on the market. Claim yours now—only at RobsAquatics.com.