Common Bristlenose Pleco – Ancistrus sp.
The Common Bristlenose Pleco is one of the best beginner-friendly plecostomus species thanks to its manageable size, hardy nature, and helpful tank-cleaning habits. Unlike larger plecos, the Bristlenose stays small, maxing out around 6 inches, making it ideal for community aquariums and even smaller cichlid setups.
Provide plenty of hiding spots, driftwood, and fresh vegetables for grazing. While generally peaceful with other fish, Bristlenose Plecos can be territorial with their own kind or other plecostomus species.
Key Details:
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Scientific Name: Ancistrus sp.
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Origin: Tank-Raised
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Available Sizes:
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Extra Small: 0.5" – 1.5"
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Small: 1.5" – 2.5"
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Medium: 2.5" – 3.5"
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Large: 3.5" – 4.5"
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Extra Large: 4.5" – 6"
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Adult Size: ~6"
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Type: Freshwater Catfish
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Temperament: Peaceful (territorial toward other plecos)
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Tank Size: 30+ gallons recommended
Water Parameters:
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Temperature: 76–82°F
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pH: 6.5–7.5
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Hardness: Moderate
Diet:
Omnivorous, but primarily herbivorous. Feed a mix of algae wafers, blanched vegetables (zucchini, cucumber, spinach), and occasional protein-based foods. Driftwood is also recommended, as it aids digestion and provides natural grazing surfaces.
Why Choose a Bristlenose Pleco?
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Compact size compared to common plecos (only 6" max).
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Great algae grazers to help keep aquariums clean.
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Hardy, adaptable, and excellent for community tanks.