Quick Overview The Cardinal Tetra (Paracheirodon axelrodi) is widely regarded as one of the most beautiful and iconic freshwater fish in the world. Often confused with its close relative, the Neon Tetra, the Cardinal is highly preferred by professional aquascapers because its intense, fiery red belly stripe runs the entire length of its body, creating an unmatched visual impact. Native to the warm blackwaters of the Amazon Basin, these peaceful schooling fish look absolute best when swimming en masse against a backdrop of lush green aquatic plants and dark driftwoods.
Tank Requirements & Local Care Tips
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Care Level: Beginner to Intermediate (They appreciate stable, well-maintained water parameters)
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Minimum Tank Size: 15 to 20 Gallons (Must be kept in schools of at least 6 to 10; the larger the school, the more secure they feel and the tighter they will swim together)
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Water Temperature: 24°C to 29°C (Thrives beautifully in standard warm tropical setups)
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Temperament: Extremely Peaceful (The ultimate tank mate for Discus, Angelfish, Ram Cichlids, Corydoras, and Dwarf Shrimp)
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Bacolod Hobbyist Tip: While Cardinal Tetras are wonderfully adapted to the warm climate of Bacolod, they are sensitive to sudden shifts in water parameters and high nitrates. To truly make their iridescence pop, feed them high-quality color-enhancing micro-flakes or small pellets rich in carotenoids. They also prefer slightly soft, acidic water—adding a few dried Talisay (Indian Almond) leaves to your filter or tank will naturally release beneficial tannins that mimic their native Amazonian habitats. Drop by our shop today to pick up premium water conditioners, specialized nano foods, and a dazzling school of healthy Cardinal Tetras!
