Before breeding sapphire swordfish, it is necessary to keep the relative density of seawater at 1.022. Otherwise, they can't carry out normal life activities, which will lead to diseases and even death. Besides, they are social creatures and like to be in groups. Therefore, it is suitable for polyculture with fish smaller than them. The most important thing is to use old water as much as possible for breeding, and when changing water, you should not change all of it into new water. Generally speaking, it is not difficult to raise them, so it is recommended to raise them.

1. Feeding: sapphire swordfish are omnivorous animals, so they are not picky about food, and their acceptance is very high. Whether it is plankton, algae, red worms, crustaceans and artificial diet, they are acceptable. However, it should be noted that when feeding active bait, it is necessary to disinfect it in advance, otherwise it will easily lead to their illness.

2. Water quality: It is recommended to keep the pH value of water between 8.1-8.4 and the hardness of water between 7-9. This is the most favorable water quality condition for their survival.

3. Water temperature: They are suitable for living in water environment with water temperature between 24-27 ℃.