Tarev,
I keep most of my sans on the front porch from May to October which is very large and covered. They get the morning sun and I have complete control of how much water they get. If you keep them warm and very low water they tend to overcome anything. Very hard to kill. In the winter I cut back on watering to almost nothing. You could keep them indoors all year if you want. No problems. When you first buy them, their usually in a regular potting soil mix. Sans like fast draining like cactus. If over watered, no big deal, just let it drain out and not collect in the bottom tray.
Thanks, Stush
