The Red Whiptail Catfish (Rineloricaria lanceolata), also known as the Lizard Catfish, is a peaceful, slender-bodied bottom-dweller admired for its reddish-brown coloration and long, whip-like tail. Native to slow-moving South American rivers, it thrives in aquariums with fine sand substrates, driftwood, and smooth rocks that allow it to rest and blend in naturally. These catfish prefer soft, clean, well-oxygenated water with gentle flow and subdued lighting. They are omnivorous and should be offered a varied diet of sinking algae wafers, vegetable matter, and occasional protein foods like bloodworms or brine shrimp. Red Whiptail Catfish are calm, social fish that do well in peaceful community tanks and may even breed in captivity if provided with suitable caves and stable water conditions.
Aspect
Details
Scientific Name
Rineloricaria lanceolata
Common Name
Red Whiptail Catfish, Lizard Catfish
Origin
South America (Amazon Basin and tributaries)
Size
Up to 6 inches (15 cm)
Lifespan
6–10 years
Temperament
Peaceful, bottom-dwelling
Tank Size
Minimum 30 gallons
Water Temperature
75–82°F (24–28°C)
pH Range
6.0–7.5
Water Hardness
2–12 dGH
Substrate
Fine sand preferred
Diet
Omnivore – algae wafers, vegetables, bloodworms, brine shrimp
Tankmates
Peaceful community fish (tetras, rasboras, corydoras, etc.)
Breeding
Cave spawner; males guard eggs
Care Level
Moderate
Special Notes
Needs smooth surfaces to avoid body abrasions; prefers clean, soft water