Be careful not to keep snails in tap water for too long, as they will die over time. In addition, because the tap water is less nutritious, it is not suitable for the growth of snails, so it will get thinner and thinner over time. So when farming snails you need to change the water every other week to keep the water clean and to control the water temperature so that the snails can grow normally, you can also put rotting organic fertilizers in the water and feed fish, rice, green vegetables and other food on a daily basis.