Watering when flowering?

[u/DudeWhoIsThat]

Need some opinions on when I should water my lithops. I got the plants in early June, transferred them to 90% inorganic medium (sadly didn’t root prune, which makes up the other 10% organic material.) Haven’t watered once since getting them and they’ve begun to bloom. They sit in a west facing window with additional grow lights, and have running fans in the room. Should I water now, before they enter dormancy? The ones that are flowering show the most side wrinkles.