Here’s a clean, to-the-point care guide for the L257 Pleco, also known as the Tigrinus Pleco—a rare and stunning striped species with a more carnivorous diet and striking contrast.
L257 Tigrinus Pleco Care Guide
Common Names:
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Tigrinus Pleco
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L257 Pleco
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Tiger Striped Pleco
Scientific Name: Pseudolithoxus tigris (previously placed under Lasiancistrus or Peckoltia by mistake)
Origin: Upper Orinoco River, Venezuela
Size: 4–5 inches (10–13 cm)
Lifespan: 8–10 years
Temperament: Peaceful, semi-territorial with similar species
Tank Setup
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Tank Size: 30 gallons minimum for one adult
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Substrate: Soft sand or fine gravel
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Decor:
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Rock caves, slate stacks, driftwood
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Provide tight hiding spots and shaded areas
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Plants: Safe with plants but prefers rocky layouts with cover
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Lighting: Low to moderate—shy in bright light
Water Parameters
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Temperature: 79–86°F (26–30°C)
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pH: 5.8–7.2
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Hardness: Soft to moderate (3–10 dGH)
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Filtration: Strong with excellent oxygenation—comes from high-flow areas
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Water Changes: 30–50% weekly to maintain pristine water
Diet
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Feeding Style: Omnivore with strong carnivorous tendencies
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Staple Foods:
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Sinking carnivore pellets
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Frozen/live foods (bloodworms, brine shrimp, chopped shrimp)
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Some vegetable matter (zucchini, spinach) occasionally
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Feeding Frequency: Once or twice a day
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Note: Not an algae eater—requires protein-rich diet to thrive
Behavior & Tankmates
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Activity: Nocturnal or active in low light
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Temperament: Peaceful, can be shy; mildly territorial toward similar-shaped plecos
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Tankmates:
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Peaceful tetras, rasboras, dwarf cichlids, Corydoras
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Avoid: Aggressive or very large fish that may outcompete or stress it
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Compatibility Tip: Provide multiple caves to avoid conflict with other bottom dwellers
Breeding
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In Captivity: Very rare; not well-documented
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Spawning Type: Presumed cave spawner like most Loricariids
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Requirements: Clean, warm, soft water with well-oxygenated current
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Fry Care: Unknown, but likely similar to other Pseudolithoxus—small and slow-growing
Care Tips
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Needs high flow and oxygen—simulate river-like conditions
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Protein-focused diet is key—low-nutrient algae wafers won’t cut it
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Color and contrast may fade in stress or poor conditions—keep water clean and tank calm
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Can be pricey and sensitive—best for intermediate to advanced keepers
Let me know if you'd like this formatted as a tank label, care sheet, or added to a rare pleco comparison list.
