1. water quality: mussels have high requirements for water quality, especially to ensure smooth water flow. The stagnant water environment will affect the growth of mussels and increase the chance of illness. Change water regularly when raising mussels, and pay attention to removing sediment and impurities.

2. Feed: Mytilus is an omnivore, which generally feeds on algae and benthos. In family farming, algae and plankton such as clams and shrimps can be used as feed, and mussels, such as krill or shrimp skin, can also be fed with some feed rich in calcium and protein.

3. Water temperature: Mytilus likes waters with relatively low water temperature, so it should be kept in a ventilated and cool place at home to avoid sun exposure. If the temperature is too high, mussels will lose their vitality or escape from the drain.

4. Disease prevention: mussels are easy to be infected with parasites, and attention should be paid to keeping the water clean during the breeding process to prevent mussels from being infected with each other. If mussels are found to have abnormal behavior and appearance, they should be isolated and treated in time.

In a word, only by maintaining the environment, providing suitable feed and paying close attention to its growth state can mussels grow healthily and produce delicious food.