Zebra pleco

The zebra pleco is one of the most coveted catfish in the aquarium hobby, named for its striking pattern of bold white or cream vertical stripes set against a deep black body — a contrast that earned it the L-number designations L046 and L098. Endemic to the Rio Xingu basin in Brazil, this species inhabits fast-flowing, highly oxygenated waters where it hides among rock crevices and rubble in deeper sections of the river. Part of the Loricariidae family, it reaches about 8 cm (3.2 inches) standard length and is armoured with bony plates rather than scales, with a suckermouth adapted for gripping surfaces in strong currents. Unfortunately, wild populations have come under pressure from habitat alteration associated with hydroelectric dam construction in the Xingu, making captive breeding programmes increasingly important for conservation.

In the aquarium, zebra plecos require pristine, well-oxygenated water with a temperature of 26–30°C and a pH of 6.0–7.5, with hardness between 2–15°H. A minimum 80-litre tank is recommended for a single adult, though the aquarium footprint matters more than volume since these are benthic fish that spend most of their time on the bottom. The ideal setup mimics their natural habitat: a soft sandy substrate topped with smooth pebbles and rocks of varying sizes, plus driftwood branches that provide crevices and tunnels for refuge. Strong water movement from a powerhead or two is essential for oxygenation, and while plants generally struggle in these conditions, hardy species like Anubias or Java fern attached to wood can survive. These catfish are somewhat reclusive and appreciate dimmer lighting, so floating plants or shaded areas help them feel secure.

Despite being labelled Loricariidae and thus assumed to be algae-eaters, adult zebra plecos are carnivorous and require a meaty diet of live and frozen foods such as bloodworm, chopped mussel, prawn, and quality sinking carnivore pellets. Algae and vegetable matter are rarely taken, though the occasional slice of cucumber may be nibbled. They are generally peaceful towards tankmates too large to be considered food, with a semi-aggressive temperament best managed by providing ample hiding spots. Spawning in captivity is achievable with stable water conditions and a varied diet — males guard caves containing the eggs until they hatch. With excellent care, zebra plecos can live 15 years or more, making them a long-term commitment for the dedicated aquarist.