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The Emperor Tetra - Blue Kerri is a cute and fun little freshwater fish. This is a slightly smaller species compared to other Emperor Tetras, only growing to about 4cm. Easy to take care of, well-mannered, and look stunning! 


Features of Emperor Tetra - Blue Kerri:

  • Stunning blue to purple color of their whole body
  • They are peaceful fish and can be kept with other aquarium fish 
  • Care Level : Easy


The Best Aquarium Size for Tetras:

Being small fish, Emperor Tetra - Blue Kerri is a schooling fish by nature, and best kept in groups of ten or more. You need a minimum tank size of 35L to keep a small group of Emperor Tetras.
You’ll likely need much larger tanks if you’re planning on introducing some tank mates and maybe even more Tetras—usually, the bigger, the better. These fish are active swimmers, so you need to provide plenty of space to prevent overcrowding.

After an Aquarium for your fish? Browse our Aquarium Tank Selection here.


Tank Mate Compatibility:

A schooling fish by nature, the Emperor Tetras - Blue Kerri are best kept in groups of at least ten or more. They make an excellent community fish due to their peaceful nature. However, they tend to be timid and, because of their small size, should not be kept with large or aggressive fish who may bully or simply eat them.
Here’s a list of some of the best tank mates for your Tetras:
   Coburg Aquarium, specialised in different species of live fish.


Feeding :

Emperor Tetras can be happily feed on dry foods, either flakes or granules. In addition to artificial feeds, it is recommended to include live or frozen food (Aartemia, Daphnia or Grindal worms).

When it comes to putting the diet together, try to make it as diverse as possible. The feeding habits of Emperor - Blue Kerri Tetras directly affects their appearance and color.  Plants in your aquarium that these fish can naturally graze upon are a great addition to their diet.


Emperor Tetra Tank Guide:

Aquarium Heater :

The temperature of your Tetra’s tank should match that of its native environment. Ideal water temperatures sit between at a stable number between 23  ⁰C - 26  ⁰C

Looking for a Heater for your fish? Check all available Tank Heater here.

Aquarium Light :

You can choose to use lighting in your aquarium if that’s what you prefer. Tetras spend most of their time in shaded waters in their natural habitat. To imitate that in captivity, dim lighting would be ideal. LED lights will provide the most customization and allow you to adjust the intensity until you reach the sweet spot.

Need An Aquarium Light for your tank? Browse our Fish Tank Aquarium Lighting

Substrate :  

Gravel and Dark Color Substrates.
A variety of Substrates are avalibale in Coburg Aquarium. 

Plants for Tetras:

They are accustomed to medium to large plants in their natural habitat and enjoy a well-planted aquarium with some open swimming space.
Interested in Live Plants for your aquariums? Click here to see more Fish Live Plant 

Decorations for Tetras:

Artificial plants can work well. Additionally, you can also choose to use Aquarium Ornaments such as: Kazoo handmade fish decorations, caves, rocks, and maybe even driftwood will create a fun playground for them to swim around.


Additional Information

Fish Keeping Snapshot :

Preferred Water Parameters :