Cardinal Tetra (Paracheirodon axelrodi)
Description
The Cardinal Tetra is one of the most iconic freshwater fish, celebrated for its vibrant coloration and peaceful nature. With its striking neon blue stripe running along the length of its body and a vivid red underside, the Cardinal Tetra is a stunning addition to any aquarium. Native to the blackwater streams of South America, these schooling fish thrive in well-planted tanks and bring a harmonious, lively energy to community setups.
Key Features
- Scientific Name: Paracheirodon axelrodi
- Common Name: Cardinal Tetra
- Size: Up to 2 inches (5 cm)
- Temperament: Peaceful, schooling fish
- Lifespan: 4-5 years with proper care
- Diet: Omnivorous – enjoys high-quality flakes, micro pellets, and live or frozen foods like brine shrimp, daphnia, and bloodworms.
- Tank Level: Mid-level swimmers
Tank Requirements
- Tank Size: Minimum 10 gallons for a small school (recommended group of 6 or more)
- Water Temperature: 73°F to 81°F (23°C to 27°C)
- pH Range: 5.0 to 7.0
- Water Hardness: 1-4 dGH (soft water preferred)
- Substrate: Dark substrate enhances their vibrant colors.
- Tank Setup: Heavily planted tank with driftwood, leaf litter, and gentle water flow to mimic their natural blackwater habitat.
Care Tips
- Always keep Cardinal Tetras in schools of at least 6-8 individuals to reduce stress and encourage natural behavior.
- Perform regular water changes to maintain pristine water quality.
- Use a dimly lit or shaded tank with floating plants to replicate their natural environment.
Compatibility
Cardinal Tetras are excellent community fish and pair well with other peaceful species, such as:
- Corydoras Catfish
- Dwarf Gouramis
- Neon Tetras
- Shrimp species (like Amano or Cherry Shrimp)
Why Choose Cardinal Tetras?
The Cardinal Tetra’s dazzling colors and tranquil demeanor make it a favorite among aquarists. Whether you’re creating a biotope or a mixed community tank, these fish add movement, color, and a sense of serenity to your aquarium.
Size is about 0.5" - 0.75".
**Sold in a bundle option of 5 Fish, 10 Fish or 25 Fish**
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Cardinal Tetra
Very young... barely have color, but they look great.
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5 cardinal tertas
5 guys all in good health
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5 Cardinal Tetras Look Great!
Shipping was quick even though dealing with COVID issues. 3 of the 5 ventured out to front of tank so I fed them a bit. Great purchase! Will buy again!
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Are they real Cardinals?? Yes!
I ordered 8 of these beasts. Three did not survive the journey. But I was satisfied with that since the package sat on my step for a few hours. They are great fish. Red all the way down their belly. They joined my 8 neon tetras in and gourami. My planted 10 gallon. The other fish and shrimp I ordered survived 100%. gallon. I will be back for more.
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So Much Color
I bought a small school to add some color to an otherwise natural tank setting . I couldn't be happier .
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Nice fish
Bought 20 recently, all arrived fine and really nice specimens.
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Cardinal Tetras
All 7 Arrived healthy in perfect condition. Colored up immediately after introduction to planted tank.
