{"id":39,"date":"2026-02-14T09:19:27","date_gmt":"2026-02-14T09:19:27","guid":{"rendered":"https:\/\/nanofishcorner.lk\/live\/?post_type=product&p=39"},"modified":"2026-10-26T06:30:48","modified_gmt":"2026-10-26T06:30:48","slug":"cardinal-tetra","status":"publish","type":"product","link":"https:\/\/nanofishcorner.lk\/live\/product\/cardinal-tetra\/","title":{"rendered":"Cardinal Tetra"},"content":{"rendered":"

The Cardinal Tetra<\/strong> is one of the most popular nano aquarium fish in the world. Known for its brilliant red and electric blue stripe, the Cardinal Tetra adds vibrant color and movement to planted aquariums. Because the Cardinal Tetra is a peaceful schooling fish, it thrives best when kept in groups and is an excellent choice for community tanks.<\/p>\n

Native to slow-moving blackwater streams in South America, the Cardinal Tetra<\/strong> prefers soft, slightly acidic water and heavily planted environments. When kept in proper conditions with good water quality, this species displays intense coloration and natural schooling behavior that makes any aquarium look alive.<\/p>\n

\n

What We Like About the Cardinal Tetra<\/strong><\/span><\/h2>\n

\u2022 Bright neon red and blue coloration
\u2022 Excellent nano schooling fish
\u2022 Perfect for planted aquariums
\u2022 Very peaceful temperament
\u2022 Great community fish<\/p>\n

\n

Recommended Tank Parameters for Cardinal Tetra<\/strong><\/span><\/h2>\n

Tank Size: Minimum 60L (15 gallons)
Temperature: 24\u201328\u00b0C
pH: 5.5 \u2013 7.0
Water Hardness: Soft to moderately soft
Lighting: Moderate lighting preferred<\/p>\n

Stable water conditions are very important for Cardinal Tetra<\/strong> health. Sudden changes in water parameters can stress the fish and affect their color.<\/p>\n

\n

Cardinal Tetra Schooling Behavior<\/strong><\/span><\/h2>\n

The Cardinal Tetra<\/strong> is a true schooling fish and should always be kept in groups. Keeping at least 6\u201310 Cardinal Tetras<\/strong> helps them feel secure and display natural swimming patterns. Larger groups often produce stronger colors and more active schooling behavior.<\/p>\n

\n

Cardinal Tetra Tank Mates<\/strong><\/span><\/h2>\n

Because the Cardinal Tetra<\/strong> is extremely peaceful, it can live with many small community fish.<\/p>\n

Good tank mates include:<\/p>\n

\u2022 Rasboras<\/a>
\u2022 Guppies
\u2022 Corydoras catfish<\/a>
\u2022 Small peaceful tetras
\u2022 Otocinclus<\/p>\n

Avoid aggressive or large fish that may see the Cardinal Tetra<\/strong> as food.<\/p>\n

\n

Are Cardinal Tetras Shrimp Safe?<\/strong><\/span><\/h2>\n

The Cardinal Tetra<\/strong> is mostly shrimp safe.<\/p>\n

\u2022 Safe with adult shrimp
\u2022 May eat baby shrimp (shrimplets)<\/p>\n

If you keep shrimp in the same aquarium, adding moss and dense plants<\/strong> can help protect baby shrimp.<\/p>\n

\n

Cardinal Tetra Diet<\/strong><\/span><\/h2>\n

In aquariums, the Cardinal Tetra<\/strong> accepts a variety of foods including:<\/p>\n

\u2022 High-quality micro pellets<\/a>
\u2022 Crushed flakes
\u2022 Frozen foods (daphnia, bloodworms)
\u2022 Baby brine shrimp<\/p>\n

A varied diet helps maintain strong colors and healthy growth.<\/p>\n","protected":false},"excerpt":{"rendered":"

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