Many similar species of Ancistrus enter the aquarium hobby and are sold as Bristlenose Catfish. The most commonly seen are usually captive-bred and near impossible to correctly identify without the originality location. Ancistrus sp. are great algae eaters, and can grow to a maximum 12cm in length, they offer an alternative to the common Pleco which attains a monstrous size and is unsuitable for all but the largest of aquariums. Bristlenose catfish prefer a strong water current with plenty of oxygenation. Numerous hiding places should be providedPlants may be safely kept with Bristlenose Catfish, and most small-medium community type fish kept harmoniously alongside them. If keeping more than one specimen (or if keeping with other Loricarids), the occasional minor scuffle for territory may occur, but no serious damage will arise if the fish are given enough space. Bristlenose Catfish must only be added to mature aquariums. Albino, mottled ‘orange’ and long-finned varieties are also sometimes available.
Synonyms | N/A |
Distribution | South American rivers. Many specimens offered for sale in the trade are tank-bred. |
Sexual Dimorphism | Older males develop bushy-like growths on the head. |
Maximum Size | 12cm (4.72”) |
Water Parameters | Will acclimatise to a wide range of conditions. pH: 5.5-8.0, dH: up to 20 degrees. |
Temperature | 23-27 deg C (73-81 deg F) |
Compatibility | Community |
Lighting | No special requirements |
Whats for Lunch?
Bristlenose Pleco are almost completely vegetarian however they will accept frozen brine shrimp and sinking pellets on occasion. Although algae is their main food source they should be fed vegetables to supplement this – algae wafers are ideal however vegetables should be offered too, cruciferous vegetables will go down well along with cucumber. A good amount of bogwood should be in the aquarium in order for the fish to graze and extract lignin from it – an essential part of their diet.
Breeding
Bristlenose Catfish can be bred in the community aquarium, although high numbers of fry are unlikely to survive due to predation. Bristlenose plecs are a cave spawning species, they lay eggs in caves, the male tirelessly guards the eggs and keeps a good amount of oxygen flowing over them by continually fanning with his pectoral fins. After approximately 5 days, the eggs will hatch into wrigglers and they will attach themselves to the décor and tank walls. The yolk sacs are absorbed over a 10-14 day period, after which time they will become free-swimming.