Pimelodella cristata (Family: Heptapteridae):
Scientific Classification
• Scientific Name: Pimelodella cristata
• Family: Heptapteridae
• Common Names: Cristate Catfish, Pimelodella Catfish
Appearance
• Coloration: Slim, elongated body with a silvery to pale base color. It often has a faint dark lateral line running from the snout to the tail.
• Body Shape: Characteristic streamlined body typical of Pimelodella species, with a slightly flattened ventral side for bottom-dwelling.
• Fins: Long barbels around the mouth that help it navigate and forage in dimly lit environments.
• Size: Typically grows to 4–6 inches (10–15 cm), making it a manageable size for most aquariums.
Habitat and Origin
• Native Habitat: Found in freshwater rivers, streams, and tributaries across South America. Prefers fast-flowing waters with rocky substrates and ample hiding spots.
• Water Parameters:
• Temperature: 72–82°F (22–28°C)
• pH: 6.0–7.5 (slightly acidic to neutral)
• Hardness: Soft to moderately hard water.
Aquarium Care
• Tank Size: A minimum of 30 gallons for a small group; larger tanks are preferred if keeping a community setup.
• Aquascape:
• Use driftwood, rocks, and caves to provide hiding spots and mimic natural habitats.
• Substrate should be sand or smooth gravel to prevent injury to barbels.
• Moderate to strong water flow to replicate riverine conditions.
• Lighting: Low to moderate lighting as this species is adapted to shaded or dimly lit waters.
• Diet: Omnivorous, with a preference for meaty foods:
• Sinking pellets and tablets.
• Frozen or live foods such as bloodworms, brine shrimp, and small crustaceans.
• Occasional vegetable matter like spirulina-based foods.
Behavior
• Temperament: Peaceful and social, often schooling with conspecifics or other similar-sized fish.
• Activity Level: Nocturnal; active during the evening and night, often hiding during the day.
• Special Behavior: Uses its sensitive barbels to forage for food on the substrate.
Tankmates
• Compatible with other peaceful or semi-aggressive fish of similar size, such as:
• Tetras
• Rasboras
• Corydoras
• Small to medium-sized cichlids (e.g., angelfish or dwarf species)
• Avoid housing with large, aggressive species that may prey on or outcompete them for food.
Breeding
• Challenge: Breeding in captivity is rare and not well-documented.
• Requirements:
• Create a well-structured environment with ample hiding spots.
• Simulate seasonal changes with cooler water and increased flow to encourage spawning.
• Fry Care: Provide microfoods such as infusoria or finely crushed flakes once hatched.
Special Considerations
• Water Quality: Sensitive to poor water conditions. Maintain excellent filtration and conduct regular water changes to keep nitrate levels low.
• Behavioral Needs: Prefers to be kept in groups of 4–6 individuals to reduce stress and encourage natural schooling behavior.
• Handling: Handle with care; their barbels are sensitive and can be easily damaged.
Conclusion
Pimelodella cristata is a peaceful and active catfish that adds interest and functionality to community tanks. Its manageable size, social nature, and ease of care make it an excellent choice for aquarists looking to include a bottom-dwelling species. Proper tank setup and consistent maintenance will allow this fish to thrive in captivity.
