"Water you going to do with this"
A pond is an obtainable plot in Slime rancher. The ponds only known uses so far are to store water, house puddle slimes, calm slimes down, water a garden, and provide water which can kill the tarr slimes. There are no upgrades.
When using water form the pond it will deplete and it will also deplete when drank by puddle slimes, but it will slowly increase overtime and immediately fill up when it rains.
Note: Rain not implemented to the game yet.