They tend to eat moss and photosynthetic as well as various other single cell contents, but are rarely carnivorous, eating radiolarians, nematodes, and sometimes even other Tardigrades.

• 水熊喜欢吃苔藓和各种的单细胞生物，而不吃肉，吃散线虫类，线虫类，甚至是其他缓步动物。