The Polka Dot Cardinal has a pale body colour with one black band around its mid body dotted with black spots of differing sizes all over its body.
For the best care, the Polka Dot Cardinalfish should be kept in small schools in suitably sized aquarium. Because the Polka Dot Cardinalfish is a slow and methodical swimmer, it should be housed with peaceful tankmates and offered a plethora of hiding places amongst rockwork or plants. Most Polka Dot Cardinalfish will tend to hide in sea grass or other plants. Some may also camouflage themselves against long spined sea urchins.
Like many other schooling fish, the Polka Dot Cardinalfish will form a strict hierarchy when kept in small groups within the aquarium. However, unlike some social fish, this member of the Apogonidae family does not use aggression to exert dominance over other cardinalfish.
The Polka Dot Cardinalfish requires a well balanced diet of foods such as flake foods, pellet foods and chopped meaty foods.