Colombian Zebra Pleco-M

The L129 Pleco, commonly known as the Colombian Zebra Pleco, is a small, striking species of Hypancistrus native to the Rio Orinoco drainage in Colombia. Though not as well-known as its close relative the L046 Zebra Pleco, the L129 is appreciated for its unique dark-and-light banded pattern, peaceful temperament, and compact size, making it an excellent choice for aquarists with smaller tanks looking for a beautiful bottom-dweller.

Adult L129 plecos typically reach around 3.5 to 4 inches (9 to 10 cm) in length. Their bodies are covered in irregular black and cream or light gray bands or blotches, creating a wavy, zebra-like appearance that varies from individual to individual. Unlike the more sharply defined stripes of the L046, L129 patterns are softer and more chaotic. The fins are typically marked in a similar fashion, with the caudal fin often showing bolder contrast.

In the aquarium, L129 plecos do best in tanks of at least 20 gallons, ideally with soft sand or smooth gravel substrate, driftwood, flat stones, and plenty of caves or crevices for hiding. They are nocturnal and appreciate subdued lighting or plenty of cover during the day. A calm environment with low aggression is important for their well-being.

Water parameters should be stable and clean, with a temperature range between 78 and 84°F (25 to 29°C), pH between 6.2 and 7.4, and soft to moderately hard water. Strong filtration and regular water changes are key, as they are sensitive to deteriorating water quality.

L129 plecos are omnivorous but lean more toward the carnivorous side of the diet. In the wild, they feed on small invertebrates and biofilm. In the aquarium, they accept a range of sinking foods such as carnivore pellets, high-protein wafers, and frozen or live foods like bloodworms, brine shrimp, and blackworms. Occasional vegetable matter like blanched spinach or zucchini can also be offered.

Peaceful by nature, L129s can be housed with small tetras, rasboras, peaceful cichlids, and other non-aggressive bottom dwellers. They are territorial toward their own kind, especially males, so multiple individuals should only be kept together if the tank provides enough caves and space to reduce competition.

Breeding has been achieved in captivity. They are typical cave spawners: the male guards the eggs in a small, tight-fitting cave until they hatch. Providing a variety of cave sizes and maintaining excellent water quality and a rich, protein-based diet can help encourage spawning in a mature, stable tank.

Overall, the L129 Pleco (Hypancistrus sp. “Colombian Zebra”) is a beautiful and relatively low-maintenance dwarf pleco species. Its manageable size, striking appearance, and peaceful behavior make it ideal for planted or community aquariums, especially for aquarists interested in Hypancistrus species but without room for their larger cousins.