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*This fish is a marine species*

The PJ or Pajama Cardinalfish are suited for the beginner aquarist. It is a peaceful and beautiful species that is a great addition to any community aquarium. It is a small fish species with distinct markings including orange eyes, a black band scalar margin and orange polka-dots across its posterior. It is an outstanding choice for many aquarists as it is hardy and peaceful with many other species.

This species is native to reefs within the Indo-Pacific Region.  


Features of Pajama Cardinalfish:

  • Green, silver, orange and black in colour
  • Grows up to 8cm
  • Care level: Easy
  • Peaceful
  • Reef compatible


Tank Mate Compatibility:

Here’s a list of some of the best tank mates for your PJ Cardinalfish:

  • Blennies
  • Clownfish
  • Small Angels

PJ Cardinalfish can be kept singly and in small or large groups. They are reef safe and can get along peacefully with other non-aggressive fish.



PJ Cardinalfish are carnivores so their diet should consist of a variety of live and frozen food. This could include copepods, brine and Mysis shrimp, bloodworms and flake foods.




PJ Cardinalfish require a minimum tank size of approximately 115L. They are a slow, methodical swimmer and like hide in seagrass and other plants. These fish are jumpers so it is recommended to keep a lid on the tank, especially when first introduced.

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


Pajama Cardinal Fish prefer water temperatures between 22°C - 27°C.

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


Replicate natural conditions with artificial lighting (8-10 hours of light every 24 hours.)

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

Filtration & Water Movement:

PJ Cardinalfish require good filtration and water quality.

Explore aquarium filtration products here.


This species prefers a substrate mix of sand, coral and rubble.

View our range of aquarium substrates here.


Decorations for Pajama Cardinal Fish:

This species is peaceful but also likes security so be sure to include lots of live rock. Lots of well-developed live rock with crevices and overhang.

View our large range of aquarium decorations here.

Additional Information

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Preferred Water Parameters :