1. Tiger fish: Although arowana and tiger fish are fierce in character, tiger fish live in the middle and lower classes, while arowana likes to live in the upper class. The areas where they live do not conflict, and generally there will not be too much contradiction.

2. Parrot fish: Parrot fish has a lively character and bright body color. Breeders can keep them together with Arowana as sandbag fish of Arowana. This can not only increase the activity of Arowana, but also increase the ornamental value.

3. Crown Three Fishes: Crown Three Fishes have low requirements for environment, strong adaptability and low difficulty in feeding. In addition, their recovery ability is relatively strong, and even if they are bitten, they will recover quickly.

4. Rays: Rays live at the bottom of the fish tank, and their aggressiveness and attack power are not strong, so they generally do not have too much conflict with arowana.

1. There is plenty of space: the fish that can be polycultured with arowana are relatively large, and the breeder needs to prepare a larger fish tank for them. Only in this way can they have sufficient living space and avoid fighting.

2. Adequate food: Breeders also need to feed them regularly and quantitatively, which can not only ensure their adequate food, but also develop good eating habits, speed up their digestion and avoid indigestion.