Peixe-lápis de Três Bandas
(Nannostomus trifasciatus)

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Three-Striped Pencilfish: Elegant Stripes for Your Community Aquarium

Add subtle beauty to your planted aquarium with the captivating Three-Striped Pencilfish. Known for their distinctive markings and peaceful nature, these delightful shoaling fish are a rewarding choice for discerning aquarists.

Overview

The Three-Striped Pencilfish (*Nannostomus trifasciatus*) is a slender, torpedo-shaped characin adorned with three striking dark longitudinal stripes along its body. These stripes can beautifully transform into blotches at night, a fascinating natural adaptation. Typically reaching about 5 cm, these active fish are primarily mid to top-level swimmers, adding dynamic movement to your tank. They thrive best in a calm, well-structured environment.

Care Level

Caring for Three-Striped Pencilfish is moderately challenging, suitable for aquarists with some experience. They are peaceful and best kept in groups of six or more to encourage natural shoaling behavior and minimize any territorial sparring between males. Ensure tankmates are similarly peaceful and appropriately sized, as timid Pencilfish can be outcompeted or stressed by larger, boisterous species.

Tank Essentials

A minimum of 57 litres (15 gallons) is recommended for a healthy group, with larger tanks (75×30 cm base or 20 gallons) preferred for community setups. They thrive in soft, slightly acidic water with a pH range of 5.5–7.0 and temperatures between 23–29°C. Replicate their natural blackwater habitat with a dark substrate, driftwood, leaf litter, and plenty of live or floating plants for cover.

Diet

These omnivorous micropredators primarily feed near the water surface. Offer a varied diet of high-quality crushed flake foods and micro pellets. Supplement with small live or frozen foods like daphnia, newly hatched brine shrimp, and bloodworms to ensure optimal nutrition and vibrant coloration.

Why Buy From Us

When you buy Three-Striped Pencilfish online from us, you’re choosing healthy aquarium fish responsibly sourced and meticulously cared for. Our strict quarantine protocols and expert handling ensure your new aquatic companions arrive vibrant and ready to thrive in their new home. We are committed to ethical practices and your complete satisfaction.

• Scientific Name: *Nannostomus trifasciatus*
• Common Name / Variant: Three-Striped Pencilfish
• Maximum Size: 5 cm
• Origin: Amazon River basin (Peru, Bolivia, Brazil, Guyana)
• pH Range: 5.5–7.0
• Temperature: 23–29°C
• Lifespan: 3–5 years
• Swimming Zone: Mid to Top

Bring the serene elegance of the Three-Striped Pencilfish to your aquarium today!