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The Bristlenose Pleco (Ancistrus spp.) is a fascinating and highly beneficial addition to most freshwater aquariums, beloved for its distinctive appearance and diligent algae-eating habits. Named for the unique, tentacle-like 'bristles' or odontodes that adorn the snouts of mature males (and to a lesser extent, females), this small, hardy catfish typically reaches an adult size of 3-5 inches, making it a perfect choice for tanks 20 gallons and larger, unlike its larger common pleco cousins. Their flattened bodies are often adorned with intricate patterns of brown, black, and tan, providing excellent camouflage. Bristlenose Plecos are primarily nocturnal, spending their days hidden among driftwood or rocks, emerging at night to diligently scour tank surfaces for algae. They are incredibly peaceful and make excellent community tank inhabitants, posing no threat to other fish. To thrive, they require a well-filtered aquarium with plenty of hiding spots and crucial access to driftwood, which aids in their digestion. Their diet consists mainly of algae, but it should be supplemented with blanched vegetables like zucchini or cucumber, and high-quality pleco wafers. These industrious bottom-dwellers are not only captivating to observe but also play a vital role in maintaining a clean and balanced aquarium ecosystem.

Hardy and manageable pleco. Males develop prominent "bristles" on their snout.