Blue Wonder Killifish
The blue panchax, or blue wonder killifish, is found all over Pakistan and in two small hot springs in Singapore. These light blue and white killifish grow to three inches and are very hardy. The blue panchax are sold individually but will school at the upper part of the fish tank. In nature the panchax swims near the surface of the water and eats mosquito larvae.
Quick Facts
| Scientific Name | Aplocheilus panchax |
|---|---|
| Origin | South and Southeast Asia (Pakistan and India to Indonesia) |
| Care Level | Easy |
| Temperament | Peaceful with fish its size; eats very small fish |
| Adult Size | 3 inches |
FAQ
What is the natural habitat of the blue wonder killifish?
The blue wonder killifish is native to South and Southeast Asia, including Pakistan, India, and Indonesia, and is also found in two small hot springs in Singapore.
How big do blue wonder killifish grow?
They grow to an adult size of three inches.
Are blue wonder killifish social fish?
Yes, they tend to school together and are most commonly seen swimming near the surface of the tank.

Joan Roberts –
Easy to care for and very active in the tank. They swim near the surface and add a nice color to the display. I’ve had them for two months and they’re still healthy and schooling together.
Colin Baker –
The fish are peaceful and don’t bother other species. They look beautiful with their light blue and white coloring. I noticed they eat small mosquito larvae, which is a bonus.
Brian Coleman –
Great for beginners. They adapt quickly to the tank and stay active. I bought one and it quickly attracted a school of others. Very hardy and low maintenance.