Description : I don't know how often to water it. He says he doesn't need much water. Thanks for the reply
Last Answer : What cactus ?? Under what conditions do you grow it? - light (sun), temperature, humidity ...? : o Your question hides a lot of unknowns - so I will probably recommend only one thing ... " (like lejslejvák´) and then let the clay dry - you will probably imitate its natural living conditions.