CARDINAL TETRAS 10 pack

🔴 Cardinal Tetras (Paracheirodon axelrodi) – Vivid Schooling Gems for Peaceful Aquariums

The Cardinal Tetra is one of the most iconic and colorful freshwater fish in the aquarium hobby. Known for its brilliant neon blue upper stripe and fiery red lower body, this small, peaceful species brings unmatched vibrance and harmony to planted tanks and community aquariums.

Native to the blackwater rivers of the Amazon basin, including the Rio Negro and Orinoco, Cardinal Tetras are active schoolers that thrive in groups and feel at home in warm, soft, slightly acidic water. They’re easy to care for, peaceful, and ideal for both beginner and advanced aquarists looking to build a South American biotope or simply enhance their aquarium’s visual appeal.

🐟 Species Profile:

• Scientific Name: Paracheirodon axelrodi

• Common Name: Cardinal Tetra

• Adult Size: 1.5–2 inches

• Temperament: Peaceful, schooling

• Tank Size: 10+ gallons (20+ gallons recommended for schools)

• Water Parameters: 75–82°F | pH 5.0–7.0 | Soft, tannin-rich water

• Diet: Omnivore – accepts micro pellets, crushed flakes, frozen daphnia, and baby brine shrimp

🛠️ Tank Setup & Compatibility:

Cardinal Tetras thrive in:

• Heavily planted aquariums with low lighting and driftwood

• Blackwater or softwater setups with leaf litter and hiding spots

• Schools of 10 or more for natural behavior and minimal stress

Compatible with:

• Other peaceful species like rasboras, corydoras, apistogrammas, small gouramis

• Dwarf shrimp and non-aggressive invertebrates

• Avoid housing with large or fin-nipping fish

Behavior:

• 🧠 Intelligent, alert, and active schoolers

• 💨 Constant movement in the midwater column

• ✨ Stunning visual effect when kept in large groups

🛒 Why Buy from RobsAquatics.com?

Each Cardinal Tetra is:

• ✅ Tank-raised and hand-selected for vibrant color and health

• ✅ Acclimated to home aquarium conditions and feeding on prepared foods

• ✅ Professionally packed and backed by our Live Arrival Guarantee

• ✅ Ideal for nano tanks, aquascapes, blackwater setups, and peaceful communities

📦 Transform your aquarium into a glowing river of color with the unmatched beauty of Cardinal Tetras—a staple of peaceful, planted tanks around the world. Available now at RobsAquatics.com.