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Hypostomus fuscomaculatus LDA-09, also known as the Abacaxis Pleco, is a South American loricariid sought after by keepers of rare plecos. Its brown spotted pattern, sturdy body and bottom-dwelling habits make it an appealing fish for a carefully designed biotope aquarium. Listed under the LDA-09 code in the aquarium trade, it remains a very rare presence on the market. The specimens offered here are wild collected, providing an uncommon opportunity to observe this form in captivity. This strain is also exclusive to Ton.Fish in Canada.

General species description

Hypostomus fuscomaculatus LDA-09 belongs to the armoured catfishes of the family Loricariidae. Like several members of Hypostomus, it has a sucker mouth adapted for grazing surfaces and a body protected by bony plates. The LDA-09 code is used in the aquarium hobby to identify this form, while the scientific name connects it with a species described as fuscomaculatus, meaning marked with dark spots. This pleco is valued for its natural appearance, hardiness and mainly crepuscular or nocturnal activity. Its commercial status, rated here as very rare, calls for careful acclimation and stable aquarium conditions.

Geographic origin and biotope

Hypostomus fuscomaculatus LDA-09 is associated with Brazil and the Rio Paraná basin. It inhabits freshwater areas where the bottom consists of sand, gravel and stones, with sheltered spaces available. In the aquarium, this environment can be reproduced with driftwood, rounded rocks and caves large enough for the fish to retreat into. Efficient filtration, good oxygenation and moderate water movement suit its benthic lifestyle. Because this is a wild and very rare fish, sudden changes in temperature, pH or conductivity should be avoided.

Precise location and local name

The most commonly used trade name for Hypostomus fuscomaculatus LDA-09 is Abacaxis Pleco, while the code LDA-09 serves as an aquarium identifier. The geographic reference supplied for this strain is the Rio Paraná in Brazil. The word “pleco” is a common trade term for several loricariids and is not an official scientific vernacular name. Because of its limited availability, this fish is mainly encountered among specialists in plecos and South American bottom fish. Wild specimens should be handled carefully, especially during transport and quarantine.

Appearance and physical characteristics

Hypostomus fuscomaculatus LDA-09 has the typical Hypostomus shape: a stocky body, broad head, pectoral and dorsal fins supported by strong rays, and a ventral sucker mouth. Its base colour ranges from greyish brown to olive brown, with dark spots creating a mottled appearance across the body. The lateral bony plates provide useful protection, although the spines can catch in aquarium nets. The pattern is usually more contrasting once the fish is fully acclimated. Dim lighting and several shelters encourage natural behaviour and make this shy bottom dweller easier to observe.

General diet

Hypostomus fuscomaculatus LDA-09 should receive a predominantly plant-based but varied diet. It grazes biological films and algae on surfaces, although natural growth alone may not be sufficient in an aquarium. Offer sinking foods for bottom fish that contain vegetables, along with blanched zucchini, cucumber or spinach. Natural wood is useful for loricariids, providing grazing surfaces and environmental enrichment. A small portion of more protein-rich food may be offered occasionally, especially after the lights go out. Remove leftovers to protect water quality. Regular feeding is especially important for wild fish that arrive thin or stressed after transport.

Essential data

• River of origin: Rio Paraná
• Local name used: Abacaxis Pleco
• Origin of the scientific name: Hypostomus fuscomaculatus
• Etymology of the full name: Hypostomus approximately means “lower mouth”; fuscomaculatus means “marked with dark spots.”
• Common/vernacular names: Abacaxis Pleco
• Family: Loricariidae
• Subfamily: Hypostominae
• Pronunciation: hy-pos-to-mus - fus-ko-ma-ku-la-tus
• Maximum adult size: Approximately 20 cm
• Water temperature and pH: 24 to 28 °C; pH 6.5 to 7.5
• Appearance of the watercourse and surrounding vegetation: Flowing freshwater, mineral substrate, roots and riverside vegetation.
• Typical tankmates: Geophagus sveni Rio Parana, Megalancistrus parananus L-113, Salminus brasiliensis, Hoplias malabaricus
• Temperament and behaviour: Peaceful with similarly sized fish; mainly active in the evening and at night, close to the bottom and shelters.
• Water depth: Shallow to intermediate benthic areas.
• Sexual dimorphism: Difficult to see in juveniles; adults may show differences in body width and odontode development.
• Bottom structure and flow: Sand, gravel, stones and wood; moderate to strong current with good oxygenation.
• Availability: Very rare, wild collected and exclusive to Ton.Fish in Canada.

In your aquarium

Successful care of Hypostomus fuscomaculatus LDA-09 requires a spacious, mature and well-filtered aquarium with clean, oxygen-rich and stable water. Driftwood, rocks and caves should provide shelter without preventing water circulation. A regular vegetable-based diet, offered mainly in the evening, helps maintain good condition. Because this fish is very rare and wild collected, full quarantine and gradual acclimation are essential. Avoid competition from large territorial fish and monitor the belly, appetite and bottom cleanliness closely. Stable maintenance is more important than frequent changes or aggressive water chemistry adjustments.