Watermelon Panaque L027 (Panaque armbrusteri) Care Guide
Panaque armbrusteri is a large wood-eating loricariid catfish from the Tapajos River basin in Brazil, reaching over 40 cm in length.
Compiled by Aquairi from published sources · Published · Updated
Overview
Panaque armbrusteri is a large loricariid catfish described by Lujan, Hidalgo and Stewart in 2010. It is a major wood-eating species from the Tapajos river system, reaching about 43 cm in total length, and is known in the hobby for its green-and-black banded pattern.
Taxonomy
- Family: Loricariidae
- Genus: Panaque
- Scientific name: Panaque armbrusteri
- Describers: Lujan, Hidalgo & Stewart, 2010
- Trade designations: L027, Watermelon Pleco
Habitat
FishBase records the species from the Tapajos River and its tributaries in Brazil. It is a freshwater, demersal species of tropical climates, associated with submerged wood in flowing water.
Tank requirements
- Minimum tank volume: 700 L
- Temperature: 24-28 degrees Celsius (75-82 degrees Fahrenheit)
- pH: 6.0-7.5
- GH: 2-12 dGH
- Water flow: moderate to strong
- Lifespan: 8-12 years
This large species needs a very spacious tank with abundant driftwood and powerful, oversized filtration.
Diet
Panaque are among the few vertebrates that feed extensively on wood, using spoon-shaped scraper teeth to rasp driftwood, with algae and aufwuchs forming part of the diet. A constant supply of driftwood is essential, supplemented with vegetable-based foods.
Compatibility
The species is peaceful but large and not plant-safe. Pair it with robust, calm fish and avoid aggressive or territorial plecos.
Breeding
As a cave-spawning loricariid, breeding is considered advanced and rarely achieved for such a large fish.
Conservation status
IUCN Red List: Least Concern (assessed 7 November 2018).
Panaque armbrusteri (L027) Breeding Guide
Overview
Panaque armbrusteri Lujan, Hidalgo & Stewart, 2010, the Watermelon Panaque (L027), is a massive loricariid from the Tapajos River and its tributaries in Brazil. FishBase records it to 43 cm total length and up to 1.3 kg, and lists it as Least Concern (IUCN, 2018). It is a wood-eating (xylophagous) pleco and a cave spawner in which the male guards the eggs. Aquarium breeding is uncommon and requires a very large system because of the adult size.
Sexing
Sexing follows the Panaque genus pattern: mature males develop bristle-like odontodes, most pronounced around the head and along the pectoral-fin spines, and broader heads, whereas conditioned females are plumper and rounder viewed from above. These odontodes intensify in the breeding season.
Conditioning
The species feeds extensively on wood; Wikipedia notes Panaque use spoon-shaped, scraper-like teeth to chisel wood, with algae and aufwuchs forming an additional part of the diet. A continuous supply of soft driftwood is therefore essential for conditioning, supplemented with vegetables, in clean, fast-flowing, oxygen-rich water.
Breeding Setup
With adults reaching over 40 cm, only an exceptionally large aquarium with multiple oversized caves and ample driftwood is practical. Maintain the species' tolerated range of about 24-28 degrees C and pH 6.0-7.5 with strong current and high oxygenation. Each cave must be large enough for a mature male to back into and defend.
Spawning Behavior & Trigger
As a cave-spawning Panaque, the female deposits an adhesive clutch inside the male's cave; the male fertilises the eggs, blocks the entrance with his body and guards and fans the clutch. In related wood-eating plecos, spawning is induced by mimicking the rainy season with cooler, softer large water changes plus increased flow and oxygenation.
Egg & Fry Care
The male tends the clutch in the cave until hatching. Newly hatched larvae use their yolk sacs and, as in other wood-eating panaques, soon need access to soft wood; without it many young loricariid xylophages die or grow very slowly. Fine vegetable foods supplement the wood.
Common Challenges
Confirmed aquarium spawnings of L027 are scarce, so this protocol relies on the well-documented Panaque genus pattern; this is flagged to avoid over-stating the data. The chief barriers are the enormous adult size, the obligatory wood diet for adults and fry, and the demand for powerful filtration and oxygenation.