Quick Overview of the Black Neon Tetra
The Black Neon Tetra (Hyphessobrycon herbertaxelrodi) is a beloved, highly iconic freshwater nano species native to the clear forest streams and tannin-stained tributaries of the Paraguay River basin in South America. Reaching a compact adult size of 1.2 to 1.5 inches (3 to 3.8 cm), this peaceful characin is celebrated for its remarkable visual pop. Its upper body is characterized by a striking, light-reflecting neon greenish-gold horizontal stripe that sits directly above a bold, velvety midnight-black band. Highlighted by bright red caps over their eyes, a school of these active tetras creates a mesmerizing, high-contrast effect as they glide in tight unison through lush aquascapes.
Tank/Plant Profiles & Environmental Requirements
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Care Level: Very Easy / Beginner Friendly
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Growth Rate / Activity: Fast & Active Schooling Behavior
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Lighting: Low to Moderate (Subdued or dappled lighting intensifies their neon stripe and dark band)
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Temperature: 23°C – 28°C (Thrives naturally in Bacolod’s tropical climate)
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Tank Placement: Mid-to-Top Water Column Swimmers
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Minimum Tank Size: 10 Gallons (Must be kept in a group of 6–10 minimum to encourage bold, tight schooling)
Local Care Tips for Bacolod Aquarists
Bacolod Tap Water Match & Tannin Conditioning: Black Neon Tetras are exceptionally hardy and far more adaptable to local Bacolod tap water parameters than delicate wild cardina species. They adjust easily to neutral to slightly hard tap water (pH 6.8–7.6) with just a reliable dechlorinator used during weekly maintenance. However, to bring out their absolute brightest neon stripe and deepest velvety black band, consider aging your water with local Talisay (Indian Almond) leaves or natural driftwood. The gentle humic acids and soft tannin tint will closely mimic their natural environment and keep their slime coats healthy.
High-Contrast Aquascaping & Plant Protection: Black Neon Tetras show off their best colors when kept in heavily planted aquariums with dark backgrounds. They look jaw-droppingly beautiful school-gliding over bright green carpets of Monte Carlo or Dwarf Hairgrass. Frame the background and midground with dense stem plants or shade-loving epiphytes like Anubias Nano or Java Ferns bound to local driftwood. Always leave the rhizomes of these epiphytes completely exposed above the substrate to keep them from rotting!
Dietary Specifics & Peaceful Community Etiquette: Black Neon Tetras have small, non-destructive mouths and will never damage live foliage. Feed them a high-quality, varied diet consisting of crushed vitamin flakes, micro-pellets, and regular protein treats of frozen daphnia, baby brine shrimp, or cyclops. They are among the most peaceful community fish available, making them ideal tankmates for Corydoras, dwarf gouramis, other small tetras, and adult Neocaridina shrimp. Always maintain a secure lid or mesh screen cover on your aquarium, as these energetic swimmers can easily jump if startled during tank maintenance or room light transitions.
