Common Brown / Wild-type Bristlenose
A variant of Bristlenose Pleco (Ancistrus cirrhosus)

Representative Bristlenose Plecophoto — a dedicated image of this exact morph isn't available yet.
The natural brown-to-grey form with fine cream speckling and the iconic bushy snout tentacles on mature males. Hardy, cheap and an excellent algae grazer.
Keeper tips for this variant
Despite eating algae, supplement with sinking veggie wafers and driftwood to rasp on; a wood source is essential for long-term gut health in this species.