Generally speaking, if you are a first time fish keeper, it is recommended to start with a small number in order to take better care and observe the health of each fish. Keeping around 5 Bodhisattva fish will be more suitable for beginners.
If you are more experienced in fish keeping and also have an appropriately sized fish tank, you may consider keeping more Bodhisattva fish. Generally speaking, each Bodhisattva fish needs about 20 liters of water capacity, so you can choose the right number according to the capacity of your fish tank.
It is important to note that no matter how many Bodhisattva fish you keep, you should pay attention to the cleanliness of the breeding environment, the stability of the water quality and suitable feed. Timely clean up the tank of leftovers and foreign objects, regularly check the water quality and make necessary adjustments, as well as provide diversified feeds to safeguard the health of the Bodhisattva fish.