Tank Size: Provide a spacious tank of at least 75-125 gallons for a Common Pleco, as they can grow quite large. Water Parameters: Maintain stable conditions with a temperature range of 72-86°F (22-30°C), a pH level of 6.5-7.5, and moderately hard water. Filtration: Effective filtration is crucial to handle their substantial waste production. A powerful filter is recommended. Aquascape: Create a setup with hiding spots, driftwood, and caves. Common Plecos appreciate a substrate with soft sand or fine gravel. Tank Mates: They are generally peaceful but can become territorial as they grow. Keep them with other large, non-aggressive species that can coexist. Diet: Common Plecos are primarily herbivores, feeding on algae and plant matter. Provide high-quality vegetable-based sinking pellets and supplement with occasional protein-based foods.