Scientific name: Ancistrus cirrhosus

Common name: Bristlenose catfish

Family: Loricariidae

Usual size in fish tanks: 11 - 15 cm (4.33 - 5.91 inch)

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Recommended pH range for the species: 5.8 - 7.6

Recommended water hardness (dGH): 4 - 18°N (71.43 - 321.43ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 26 °C (71.6 - 78.8°F)

The way how these fish reproduce: Spawning

Where the species comes from: South America

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Bottom levels

Tank requirements

Unlike their common and sailfin cousins, Bristlenose plecos stay relatively small and will do well in a normal home aquarium. Although some sources note tanks of 15 gallons (54L) as suitable for a bristlenose, most aquarists will agree it’s best to go for at least 20 gallons (75L). The aquarium should always be cycled before the pleco is introduced, and to mimic the natural fast-flowing environment an air stone may be added for extra oxygenation. Plenty of dark places are definitely appreciated by these catfish, as they are nocturnal and spend a portion of the day hiding. Be sure to use a soft gravel or sand substrate: Bristlenoses tend to rest on or dig into the substrate, which makes sharper stones a less than ideal choice.