Cardinal Tetra

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The Cardinal Tetra (Paracheirodon axelrodi) is a small, docile species of tetra native to the Amazon River in South America. These fish are generally hardy, and make a great specie s for beginners and advanced keepers alike. Minimum Tank Size: 10 Gallons Maximum Fish Size: 1.5" Water Temperature: 75F - 85F Ideal pH: 5.0 - 6.5 Water Hardness: 2 - 10 dGH Temperament: Schooling species, peaceful. May be timid in too small of a school. Unless experienced with fish-in cycling, we always suggest cycling an aquarium BEFORE adding fish. Adding fish to a fresh, un-cycled aquarium can kill them rapidly. We offer free water testing at our physical location, and advice via email or call. Show more