L027c Araguaia Gold Line Thunder Royal Pleco (Panaque armbrusteri)

The L027c Araguaia Gold Line Thunder Royal Pleco is a rare and highly coveted variant of the Royal Pleco, distinguished by its bold golden striping contrasted against a dark, armored body. Native to the Araguaia River basin in Brazil, this species combines the rugged, prehistoric look of Panaque plecos with a unique, high-contrast “thunder line” pattern that intensifies with age. A true collector’s fish, this pleco is ideal for serious hobbyists looking to add a standout bottom-dweller to a large display aquarium.

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Diet

Unlike most predatory catfish, this species is primarily herbivorous/wood-grazing:

• Driftwood (essential — aids digestion)
• Algae wafers and sinking veggie pellets
• Fresh vegetables (zucchini, cucumber, sweet potato)
• Occasional protein (shrimp or pellets) in moderation

A constant supply of driftwood is critical for long-term health.

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Tank Requirements

• Minimum Tank Size: 125–180 gallons
• Water Type: Freshwater
• Temperature: 75–82°F
• pH: 6.0–7.5
• Setup: Heavy driftwood presence, strong filtration, moderate flow; provide caves or shaded hiding areas

This species produces a lot of waste due to wood consumption, so powerful filtration is a must.

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Max Size

• Maximum Adult Size: 16–20 inches

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Tank Mates

Generally peaceful but territorial with other bottom dwellers:

• Compatible: Arowanas, datnoids, large cichlids, stingrays, and other mid-to-top dwelling species
• Use caution: With other plecos or similar bottom fish (may become territorial)
• Avoid: Very small or delicate species

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Temperament

Peaceful overall, but can be territorial around its hiding spots, especially as it matures.