Un peu plus d'informations...

Panaque nigrolineatus laurafabianae L-330, also called Full-Spotted Watermelon, is a large Colombian loricariid valued for its distinctive pattern and discreet behavior. This form, identified in the aquarium trade by the number L-330, belongs to the group of Panaque with a strong wood-eating tendency. Its robust body, spined fins and contrasting spots make it a spectacular fish, but it should be reserved for spacious aquariums. The specimens described here are wild-collected. With a rarity level of 2, L-330 remains uncommon without being considered exceptionally rare. Powerful filtration, genuine wood and warm, well-oxygenated water are essential for long-term care.

General species description

Panaque nigrolineatus laurafabianae L-330 is a large suckermouth catfish from the family Loricariidae, generally kept as a South American bottom fish. It has a massive build, an underside mouth adapted for scraping and an armor of bony plates that protects it from contact with the substrate and predators. The L-330 number belongs to the L-number system used in aquariums to identify loricariids that are difficult to place confidently within a stable taxonomy. The fish is most active at dusk and during the night, when it explores wood and other surfaces. Despite its placid appearance, it becomes territorial toward its own kind and other bottom fish when shelters are limited. Its substantial growth requires a long aquarium with strong structure and excellent water quality. Its main appeal lies in its spotted coloration, adult size and wood-scraping behavior.

Geographic origin and biotope

L-330 is associated with Colombia, in the Orinoco basin, and especially with the río Meta system in aquarium references. It inhabits tropical waterways where the bottom may contain sand, gravel, pebbles and submerged wood. These areas often provide shelter beneath trunks, roots and undercut banks. The water is warm, usually soft to moderately mineralized, and well oxygenated, particularly where current is present. Dense aquatic vegetation is not necessarily dominant in the main channel; riparian trees, roots and leaf litter provide much of the habitat structure. Like other large Panaque, it uses dead wood both as a food resource and as a resting surface. A natural aquarium should therefore include plenty of wooden shelters, steady current and stable water conditions.

Precise location and local name

The L-330 designation is associated in the aquarium trade with Colombian fish from the río Meta basin. A detailed locality is not consistently attached to every shipment sold under this name, so the L-330 code remains the most practical reference. The English common name Full-Spotted Watermelon refers to the many spots over a brownish to greenish base rather than to a precise geographic locality. In Colombia, large loricariids of this type may be called “corronchos” or “cuchas,” popular names that do not necessarily identify one species. Aquarium names also include Royal Panaque, Watermelon Panaque and Panaque L-330. To avoid confusion with related forms, it is best to record the L-330 code, country of origin and, when available, collection locality together. This traceability is especially useful for wild-caught specimens.

Appearance and physical characteristics

The body of Panaque nigrolineatus laurafabianae L-330 is stout, deep and covered with bony plates. Its ventral mouth forms an effective sucker that allows it to cling to surfaces and rasp wood or algae. The base color ranges from olive brown to grayish brown, with numerous pale, rounded markings that create the characteristic spotted Full-Spotted Watermelon appearance. The fins are broad and supported by strong rays, while the dorsal fin may be well developed in adults. The pectoral spines can lock into position and should be handled carefully because they may catch in nets. Head shape, dentition and plate arrangement are typical of large Panaque, although the exact identification of commercial forms can sometimes be difficult. Its size and strength are the main husbandry considerations: provide a large aquarium footprint, sturdy décor and filtration capable of handling substantial waste production. Its fully spotted pattern and massive body shape are its most distinctive traits.

General diet

Panaque nigrolineatus laurafabianae L-330 is primarily herbivorous with a strong wood-eating tendency. Soft, well-seasoned wood should always be available because it supports normal digestion and tooth wear. The diet should also include algae-based bottom tablets, zucchini, cucumber, spinach or other blanched vegetables. Offer food mainly after the lights go out, when the fish becomes more active. Small amounts of protein-rich food may be accepted, but they should not dominate the diet. Juveniles benefit from frequent, varied meals, while adults need portions adjusted to their large size. Remove leftovers to protect water quality, especially in a heavily stocked aquarium. Wood does not replace a complete diet: it is essential, but quality plant-based foods and tablets remain necessary. An insufficient diet can lead to weight loss, competition and declining condition. Regular observation is important because a large Panaque may consume food at night without being noticed.

Essential data

• River of origin: río Meta, Orinoco basin
• Local name used: corroncho or cucha; popular Colombian names
• Origin of scientific name: Panaque nigrolineatus laurafabianae is a scientific or aquarium designation associated with this Panaque form
• Full-name etymology: Panaque is a genus name of South American vernacular origin; nigrolineatus means “black-lined”; laurafabianae is an epithet dedicated to Laura Fabiana
• Common/vernacular names: Full-Spotted Watermelon, Watermelon Pleco, Royal Panaque, L-330
• Family: Loricariidae
• Subfamily: Hypostominae
• Name pronunciation: pa-na-kay nig-roh-lee-nee-ay-tus lau-ra-fa-bee-an-ay
• Discovery: aquarium form known under the L-330 number
• Maximum adult size: about 35 cm
• Water temperature and pH: 25 to 30 °C; pH 6.0 to 7.5
• Waterway appearance and surrounding vegetation: warm tropical waterways with submerged wood, roots, wooded banks and leaf litter
• Typical tankmates: Geophagus pellegrini, Hyphessobrycon columbianus, Panaque nigrolineatus L-190
• Temperament and behavior: generally peaceful, nocturnal and territorial toward other bottom-dwelling fish
• Water depth: bottom zones near submerged trunks and shelters
• Sexual dimorphism: mature males often have broader heads and more developed odontodes; separation is variable
• Bottom structure and flow: sand, gravel, pebbles and wood; moderate to strong flow with well-oxygenated water

For aquarium success

To succeed with Panaque nigrolineatus laurafabianae L-330, provide a very spacious aquarium, natural driftwood and several shelters large enough for an adult. Oversized filtration, regular water changes and strong oxygenation are essential. Offer a varied plant-based diet and never remove the wood needed for rasping. Avoid housing it with other highly territorial large bottom fish, and monitor competition at feeding time. Because these are wild-collected specimens, gradual acclimation and a thorough quarantine are especially sensible. L-330 is a spectacular fish, but it is best suited to aquarists prepared to accommodate its adult size and considerable waste production.