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Cardinal Tetras

Last Updated: 3/16/21

Quick Information
Setup and Water Preferences
My Cardinal Tetras
Links and Pictures

I am new to these fish, so most of the sections below are empty until/unless I have time to fill them in.

Quick Information

Common names: Cardinal Tetra
Scientific/Latin name: Paracheirodon axelrodi
Maximum length: 2 inches
Colors: Red, blue, and white
Temperature preference: 73 to 82 degrees F
pH preference: 5 to 7
Hardness preference: Soft
Salinity preference: Low to medium
Compatibility: Good
Life span: Five years
Ease of keeping: Moderate
Ease of breeding: Moderate


Setup and Water Preferences



My Cardinal Tetras

On 1/27/21, I bought 12 cardinal tetras for my newly renovated 65 gallon aquarium. It did not go well. See that link for details. I will only put Cardinal-specific information here so I am not just repeating the information.

Only two of those initial 12 cardinal tetras survived. The reason is not known. Two were removed on 1/30/21, two on 1/31/21, two on 2/1/21, two on 2/2/21 (one 2/3 eaten in morning, another in afternoon), and two on 2/3/21.

On 2/23/21, I bought 6 cardinal tetras. I put them in a 20 gallon quarantine tank with 8 other new fish. They were moved to the 65 gallon tank on 3/6/21. The two cardinal tetras were very happy to have 6 new friends.

I counted the cardinal tetras on 3/13/21. There were only 7 total! This was confirmed the next day. One must have died and been consumed before I ever saw him/her. If I had to guess, I would say it was most likely one of the newer cardinals.

Links and Pictures

Photos of my Cardinal Tetras:

Photos are listed from newest to oldest.

I have not processed any photos as of yet.

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