Product Details
Longfin Common Ancistrus are striking, peaceful bottom-dwellers known for their impressive, flowing finnage and excellent algae-eating capabilities. They are incredibly hardy, making them a fantastic choice for both beginner aquarists and seasoned hobbyists looking to add character to their community tanks.
🐟 Longfin Common Ancistrus Care Tips
✅ Tank Requirements
• Tank Size: Minimum 75 litres for a single specimen; larger tanks are recommended to accommodate their long fins and waste production.
• Group Size: Keep singly or in pairs; they are territorial toward their own kind if space is limited.
• Substrate: Smooth sand or rounded gravel to protect their delicate fins and bellies.
• Filtration: Strong filtration is essential; they produce significant waste and require high oxygenation.
🌡️ Water Parameters
• Temperature: 23–27°C (73–81°F)
• pH: 6.0–7.5
• Hardness: 5–15 dGH
• TDS: 100–250 ppm
🍽️ Diet
• Omnivorous Grazer: Feed high-quality sinking algae wafers and bottom-feeder pellets.
• Supplement with blanched vegetables like courgette, cucumber, and spinach for optimal growth and colour.
🧼 Tank Maintenance
• Perform weekly water changes (10–15%) using dechlorinated, temperature-matched water.
• Provide driftwood in the tank; it is essential for their digestion and provides a natural surface for grazing biofilm.
🤝 Tank Mates
• Peaceful; best kept with small-to-medium community fish such as tetras, rasboras, and corydoras.
• Avoid overly aggressive or fin-nipping species that may damage their long, delicate fins.
🍀 Colour & Health Enhancement
• Lighting: Provide shaded areas using plants or caves; they are nocturnal and prefer dimmer environments to show their best colour.
• Diet: A mineral-rich, varied diet supports healthy growth and vibrant colour:
- High-quality spirulina-based wafers
- Occasional protein foods for growth and breeding
- Calcium-rich blanched vegetables to support strong, healthy scales


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