07/30/2025
FISH OF THE WEEK- Zebra Pleco (L46) — Hypancistrus zebra
Have you kept any of these stunning fish in your tank? What’s your favorite pleco?
We’d love to hear your experience! 🐠💬
Drop your tips, stories, and favorite moments in the comments—and don’t forget to share some pics if you’ve got them! 📸✨
The Zebra Pleco (L46) — Hypancistrus zebra — is a stunning and highly prized freshwater catfish native to Brazil’s Rio Xingu. Here’s what makes this fish unique and how to care for it:
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🐟 Overview
• Scientific Name: Hypancistrus zebra; commonly known as Zebra Pleco or Imperial Pleco  
• L‑Number: Often referred to as L46, though L98 is also used for pattern variants 
• Size: Typically grows to ~3–4 in (7–10 cm); maximum observed slab length ~6.4 cm SL 
• Lifespan: With excellent care, they may live 10–15 years or more 
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🌊 Natural Habitat & Behavior
• Origin: Found exclusively in the “Big Bend” region of the Rio Xingu, favoring fast-moving, clear water over rocky substrates 
• Conservation Status: Listed as Critically Endangered (IUCN), and its export is restricted; captive breeding efforts are helping preserve the species 
• Behavior: Nocturnal and semi-territorial, especially males during breeding; they use caves and crevices among rocks 
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🏠 Aquarium Care
Tank Setup
• Minimum Size: 20–30 US gal (~75–115 L) for small groups; 30 gal recommended 
• Water Parameters:
• Temp: 75–82 °F (24–28 °C), up to 86 °F (29 °C) for breeding 
• pH: 6.0–7.2 (slightly acidic to neutral), KH low to moderate 
• Must maintain near-zero ammonia/nitrite and low nitrates due to sensitivity 
• Oxygen & Water Flow:
• High oxygenation and strong but varied currents mimic their natural habitat — add powerheads and surface agitation 
Aquascaping & Hiding Spots
• Provide abundant caves, driftwood, and rocky crevices. This not only makes them feel secure but also encourages them to emerge instead of hiding constantly 
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🍽 Diet
• Primarily carnivorous/specialist feeders — rely more on protein than algae 
• Recommended Foods:
• High‑protein options: bloodworms, brine shrimp, insect larvae, quality sinking carnivore pellets ()
• Occasional veggie treats: zucchini, cucumber, lettuce (via veggie feeder) 
• Beware food competition — they’re shy and easily outcompeted, so use feeding stations or feeders to target them directly 
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❤️ Breeding
• Sexing: Males have broader bodies, larger odontodes (bristles) on pectorals, and sharper stripe contrast 
• Spawn in caves—male locks female in, guards egg clutch until fry disperse 
• Suitable breeding conditions: ~82–86 °F, pH ~6.5–7.2 
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⚠️ Challenges & Tips
Issue Solution
Delicate water quality Use mature tanks with strong filtration and regular maintenance
Flightiness due to stress Provide plenty of hides and stable conditions to bring them out
Shy feeding Use isolated feeding stations or prefeed before lights-out
Territorial during breeding Use multiple caves and space individuals
Reddit hobbyists note:
“They like their water warm, in the 86‑86 range and … plenty of water movement and aeration … powerhead and airstone”  
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✨ Summary
The Zebra Pleco L46 is a jewel of the aquarium world—striking, rare, and challenging. Best suited for experienced aquarists who can provide:
• Clean, warm, well‑oxygenated water with strong flow
• Carnivore-focused nutrition
• Plenty of hiding spaces and stable environment
Though sensitive, with proper care they live long, even breed in captivity, and their conservation-status makes them all the more rewarding to keep. Let me know if you’d like guidance on selecting tankmates, source breeders, or breeding setup!
