Cardinal Tetra

Cardinal Tetra

Paracheirodon axelrodi

Also known as: Red Neon Tetra

💧 Freshwater ✌️ Peaceful 🟢 Easy 🍽️ Omnivore Schooling (6+)

Similar to neon tetras but with a fuller red stripe extending the entire body length. Prefers softer, more acidic water.

Tank Size

10 gal
minimum (20+ preferred)

Temperature

73–84°F
23–29°C

pH Range

5–7
water acidity

Max Size

2"
5.1 cm

Lifespan

4–5 years
typical in captivity

Swim Level

Middle
preferred zone

Care Notes

Slightly more delicate than neons. Thrives in blackwater setups with tannins.

Feeding

Small flakes, micro pellets, frozen daphnia, and baby brine shrimp.

Compatible Tank Mates

Neon Tetra 1.5" Rummy Nose Tetra 2" Ember Tetra 0.8" Congo Tetra 3.5" Glowlight Tetra 1.5" Harlequin Rasbora 2" Chili Rasbora 0.7" Celestial Pearl Danio 1" Zebra Danio 2" Bloodfin Tetra 2" Lemon Tetra 1.5" Black Neon Tetra 1.5"

Use Caution With

Black Skirt Tetra 2.5" Serpae Tetra 1.75" Buenos Aires Tetra 3" Silvertip Tetra 2" Colombian Tetra 2.5" Giant Danio 4" Blue Tetra 2.5" Long-Finned Serpae Tetra 1.8" Discus 8" Cockatoo Dwarf Cichlid 3" Firemouth Cichlid 6" Severum 8"

Incompatible With

White Cloud Mountain Minnow 1.5" Angelfish 6" Oscar 14" Jack Dempsey 10" Convict Cichlid 5" Green Terror 8" Texas Cichlid 12" Pike Cichlid 10" Salvini Cichlid 8" Red Devil 12" Jaguar Cichlid 16" Flowerhorn 12"

Check Compatibility

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