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The Ancistrus sp. L-144 Gold is a popular Ancistrus variety valued in the aquarium hobby for its pale coloration and elongated fins. Also called Long Fins Albinos, it combines the appearance of a small bristlenose catfish with a golden-yellow to cream body and reddish eyes. Usually offered as a captive-bred fish, it adapts well to a peaceful community aquarium when the water is clean and well oxygenated. Its mainly nocturnal behavior, ability to graze surfaces and relatively simple requirements make it a popular choice, including for aquarists who are new to Loricariids.

General description

The Ancistrus sp. L-144 Gold is a small armored catfish from the genus Ancistrus, sold under an L-number used in the aquarium trade. The term L-144 refers to a captive line or selected form rather than an officially described scientific species. This variety is generally produced from albino lines selectively bred for its golden coloration and distinctive body shape. Like other Ancistrus, it has an underslung sucker mouth that allows it to cling to glass, rocks and wood. It is usually peaceful, although males may defend a shelter from other males. The L-144 Gold is very common in the aquarium trade and suits well-maintained community aquariums. It benefits from a layout with several refuges, effective filtration and surfaces covered with natural biofilm.

Geographic origin and biotope

The L-144 code is associated with the aquarium trade rather than with one clearly defined wild population. In commercial references, this line is often associated with Colombian Ancistrus, but fish sold today mainly come from captive breeding. To recreate suitable conditions, use an aquarium inspired by small tropical streams in South America: soft to moderately mineralized water, good oxygenation, moderate flow and many grazing surfaces. Roots, smooth stones, sturdy plants and ceramic caves provide a structured environment. A temperature of 23 to 28 °C, stable water chemistry and regular partial water changes support long-term maintenance. Natural wood is especially useful in the layout and encourages natural grazing behavior.

Precise locality and local name

The Ancistrus sp. L-144 Gold is not associated in the aquarium trade with a precise collection locality comparable to those used for wild Loricariids identified by river. Its commercial name is based mainly on the L-144 code and its captive-bred traits. In Colombia, Ancistrus are generally described locally as sucker catfish or « plecos », but L-144 Gold and Long Fins Albinos are the most useful names for recognizing this form in the international trade. The letter « L » refers to the German cataloguing system for Loricariids used by aquarists, while 144 serves as a commercial identifier. It does not replace a valid species name and, by itself, cannot determine a river of origin.

Appearance and physical characteristics

The body of the Ancistrus sp. L-144 Gold is stocky, flattened along the belly and protected by the bony plates typical of armored catfish. Its coloration ranges from golden yellow to pale cream, with little or no dark pigmentation. The eyes are usually reddish, a feature associated with albinism. Its sucker mouth has small teeth adapted for scraping biofilm and food from surfaces. The Long Fins form is distinguished by more developed dorsal, caudal and pectoral fins than the short-finned form. Adults generally reach 12 to 15 cm, depending on the line, sex and rearing conditions. Mature males develop branched tentacles on the snout, much more noticeable than those of females.

General diet

The Ancistrus sp. L-144 Gold is primarily a grazer and an omnivore with a strong preference for plant matter. Its diet should be based on sinking wafers or tablets for bottom-feeding fish that contain a substantial amount of vegetable ingredients, including spirulina, zucchini, cucumber or lightly blanched green beans. It also consumes biofilm growing on wood, rocks and glass, although natural growth alone may not always meet its nutritional needs. Feeding after the aquarium lights go out helps ensure access to food because this fish is often more active in the evening and at night. It also accepts small amounts of quality animal foods, such as protein-based wafers or frozen foods. To prevent weight loss and deficiencies, provide a varied diet and remove leftovers to protect water quality.

Essential data

• Name of original river:
• Local name used: Sucker pleco; L-144 Gold; Long Fins Albinos
• Origin of the scientific name: Ancistrus is the genus name; sp. indicates that the exact species is not specified.
• Etymology of the complete name: Ancistrus comes from Greek and refers to a hook; sp. abbreviates species; L-144 is an aquarium-trade code; Gold means golden.
• Common/vernacular names: Ancistrus L-144 Gold; Long Fins Albinos; albino long-finned bristlenose pleco
• Family: Loricariidae
• Subfamily: Hypostominae
• Name pronunciation: an-SIS-trus spay - el one forty-four gold
• Discovery:
• Maximum adult size: About 15 cm
• Water temperature and pH: 23 to 28 °C; pH 6.0 to 7.8
• Stream appearance and surrounding vegetation: Well-oxygenated tropical freshwater, moderate flow, roots, submerged wood and dense streamside vegetation.
• Typical tankmates: Hoplisoma paleatus, Hemigrammus rhodostomus, Paracheirodon axelrodi, Otocinclus affinis
• Temperament and behavior: Peaceful, discreet and mainly crepuscular or nocturnal; males may defend a cave.
• Water depth: Shallow to moderately deep areas near the bottom and submerged structures.
• Sexual dimorphism: Adult males have branched tentacles on the snout; females have a smoother, rounder snout.
• Bottom structure and flow: Sand or fine gravel, wood and smooth rocks; moderate flow with good oxygenation.

In your aquarium

To succeed with the Ancistrus sp. L-144 Gold, provide a mature, well-filtered aquarium decorated with roots and shelters. Offer complete vegetable foods regularly rather than relying only on algae growing in the tank. Stable water conditions, frequent partial water changes and good oxygenation are essential. Keep in mind that its long fins can be damaged by aggressive tankmates or sharp décor. With peaceful companions, a varied diet and a structured environment, this Ancistrus becomes an excellent bottom-dweller for a tropical community aquarium.