Common Pleco

Pterygoplichthys pardalis

Common Pleco (Pterygoplichthys pardalis) — Varies care, Peaceful, under Other. Minimum tank in the app: 85 US gal min; aim for 72–86°F and pH 6.5–7.5. The Common Pleco is ideal for aquarists seeking a hardy, adaptable species that can thrive in larger setups.

Common Pleco (Pterygoplichthys pardalis) in a planted freshwater aquarium
Care levelVaries
TemperamentPeaceful
Min tank size85 US gal min
pH range6.5–7.5
Temperature72–86°F
Max size15.7 in (40.0 cm)
Captive lifespan12–20 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

South America

  • South America

Regional colours match the stocking calculator’s origin map.

Common Pleco Tank Setup

A minimum of 320 liters is essential to accommodate its size and waste production. Incorporate plenty of hiding spots using driftwood and rocks, while ensuring open swimming space in the mid-zone. Moderate lighting is ideal, as it mimics their natural habitat and encourages algae growth, which supports their diet.

What Do Common Plecos Eat?

Common Plecos are opportunistic feeders that can adapt to various diets but thrive on a mix of algae wafers, vegetables, and protein sources. They can be prone to competition at feeding times, especially if kept with faster-feeding species, so consider separate feeding areas to reduce stress and ensure proper nutrition.

Common Pleco Tank Mates

Ideal companions include larger, non-aggressive species that occupy different swimming levels, such as larger tetras or peaceful community cichlids. Avoid pairing with smaller, more timid fish or overly aggressive species that could stress the Pleco. Intraspecies interactions can be complex; it's best to keep only one unless the tank is exceptionally large and well-structured.

Are Common Plecos Good for Beginners?

Care demand varies with setup and individual fish; use the numbers above as your baseline. A frequent error is underestimating their adult size and bioload, leading to overcrowded tanks and poor water quality. neglecting to provide sufficient hiding spaces can result in increased aggression and stress among tank mates, impacting overall tank dynamics.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.