The King Tiger Pleco, categorized under the L-number system as L066, and scientifically known as Hypancistrus sp., is a striking species of catfish highly sought after by aquarium enthusiasts. Native to the rivers of Brazil, particularly in the Amazon Basin, this pleco is renowned for its distinctive black and white or cream banding, which resembles a tiger's stripes, giving rise to its common name.

The King Tiger Pleco is relatively small compared to other plecostomus species, making it a suitable choice for aquarists with limited space but who desire to keep a visually impressive bottom-dweller. Its body is robust and adorned with a series of dark bands that contrast sharply against a lighter background, and its mouth is located on the bottom of its head, specialized for sucking up food from hard surfaces.

In the home aquarium, the King Tiger Pleco requires specific conditions to thrive. It prefers a setup with plenty of hiding spots, as it is a naturally shy and nocturnal species. Driftwood, caves, and rock formations not only provide necessary shelter but also help replicate the natural structure of their riverine habitat. The substrate should be soft or fine to prevent damage to the pleco’s delicate barbels and skin.

Water quality is critical for the health of L066, with cleanliness being paramount. The aquarium should have efficient filtration to maintain clear, well-oxygenated water, and regular water changes are essential to control nitrate levels and remove detritus. While temperature and pH should be kept stable within the range typical for Amazonian species, King Tiger Plecos are somewhat flexible but prefer slightly warmer and softer water.

Dietarily, the King Tiger Pleco is omnivorous but leans towards a carnivorous preference, needing a mix of vegetable matter and protein. High-quality sinking pellets, algae wafers, and occasional offerings of fresh vegetables like zucchini or cucumber are excellent. They also benefit from meatier foods like bloodworms, brine shrimp, and pieces of fish or shrimp, which should be offered sparingly to avoid fat buildup and health issues.

Breeding King Tiger Plecos in captivity can be challenging but rewarding. They are cave breeders, with the male guarding the eggs laid by the female within a secluded cave. To encourage breeding, aquarists may need to adjust water parameters slightly, mimicking the natural seasonal changes that stimulate spawning behaviors in the wild.

Conservation of their natural habitats is crucial, as habitat destruction and pollution pose significant threats to their populations in the wild. Sustainable practices in the aquarium trade are essential to ensure that the demand for such unique species does not lead to detrimental impacts on their natural populations.

Overall, the King Tiger Pleco L066 offers a wonderful combination of beauty and intrigue for the advanced aquarist, providing both a challenge in care and a rewarding experience in observing its unique behaviors and striking appearance.