The Marble Lancer Catfish (Bagrichthys macracanthus), also known as the Marbled Sand Goby or Marbled Sand Diver, is an intriguing and unique species of catfish that's native to Southeast Asia. These fish are characterized by their interesting appearance and behaviors, making them an interesting addition to a specialized aquarium setup. Let's explore the key features, care requirements, and considerations for keeping Marble Lancer Catfish in your aquarium:

Appearance:

• Camouflaged Appearance: Marble Lancer Catfish have an elongated body with a marbled pattern, helping them blend into sandy or muddy substrates in their natural habitats.
• Long Fins: They possess long, filamentous dorsal and anal fins, adding to their distinct appearance.

Behavior:

• Burrowing Behavior: These catfish are known for their unique burrowing behavior. They bury themselves in the substrate, leaving only their eyes and the tips of their fins exposed.

Tank Setup:

• Tank Size: Provide a spacious tank with a sandy or muddy substrate. A tank of at least 100 gallons (378 liters) is recommended.
• Substrate: The substrate should be fine and soft to accommodate their burrowing behavior.
• Hiding Spots: Incorporate caves, rocks, and driftwood to create hiding spots and simulate their natural habitat.

Feeding Habit:

• Carnivorous Diet: Marble Lancer Catfish are carnivores. Offer a diet of live or frozen foods like bloodworms, brine shrimp, and small fish.

Water Parameters:

• Temperature: Maintain the water temperature between 75°F and 82°F (24°C to 28°C).
• pH Level: Aim for a neutral to slightly acidic pH level between 6.5 and 7.5.
• Water Hardness: Provide moderate water hardness with a hardness level between 5 and 15 dGH.

Care:

• Tankmates: Keep them with peaceful and non-aggressive tankmates that won't compete for the same hiding spots.
• Enrichment: Provide a substrate that allows them to exhibit their burrowing behavior, as it is an essential part of their natural instincts.