Yes, it is outstanding to feed the cats with dry cat food. Even for the longer durations, it won't affect the health of the cats. The cat food from a reputable brand is complete. Still, the hydration needs to be taken care of by the respective owners. one can choose various methods such as keeping the water bowls at multiple places of the house to increase the water intake for the cats. Moreover, one can also employ flavored water to improve water intake. Or one can choose the fountains with the proper cleanings.