How to water
Lithops are quite tricky to water and are easily overwatered. They require water during some stages of their growth cycle and won't tolerate any water during other stages. All of the soil should be dry completely before watering your living stones. If the soil is moist - snooze this action, we will remind you again in 2 days.

Important info
The key is to grow them in soilless substrate such as pumice or scoria which allows the water to drain easily. For best results, wait until your plant starts to get a little wrinkled before watering.
In general, you should water your living stones when the soil is completely dry and the plant start to shrivel just slightly or shrink during the spring and summer period and ignore it almost completely during the winter.
You'll need to keep an eye on them as they can sometimes go into dormancy early. During that time, it's always better to keep them on the dryer side than to accidentally overwater them.

Water over the soil
Pour water over the soil or put the plant directly under the tap
Continue adding water to the pot until it starts to run out from the drainage holes
If you have a tray under the pot, make sure you remove all the collected water afterwards - never let your plant sit in water
If you watered under the tap make sure that water has stopped running out from the bottom before putting it back
Make sure your pot has drainage holes, without these your plant runs the risk of rotting in the excess water that can’t drain out. — Planta tip
Bottom watering
Fill the plant tray with water
Make sure the soil through the drainage holes is in contact with the water on the tray
Wait for about 10 minutes
Feel the soil to see if it absorbed enough water —> if the soil is moist throughout, remove any excess water from the tray
If it’s still dry —> add more water to the tray
Wait 20 more minutes before removing the excess
Note
Bottom watering will not wash away salts and other minerals from the soil, so make sure to also give water over the soil every now and then.
Water bath
Fill a bucket with lukewarm water
Lower the whole pot down in the water, stop where the stem of the plant starts. Make sure all of the soil is under water
The water will start to bubble - wait until it stopped
Lift the pot up and let the excess drain off
Put the plant back in the cachepot or on the tray
After 1 hour, check that the plant isn’t standing in water, if it is it might get overwatered and rot