The sapphire fish likes to forage at the bottom of the water. It eats a variety of foods, eats a large amount of food, and eats both animal and plant food, but it prefers to eat red worms, water earthworms, and also eat pork, pig liver, etc. When feeding, be sure to clean up the food to prevent the sapphire fish from getting sick after eating.

The sapphire fish has a mild temperament and can be mixed with other species of large tropical fish. But don't mix with some small fish, so that the sapphire fish will attack or swallow the small fish when they are hungry.