aiight... One thing i learned is that seedlings don't like abrupt changes in lighting. Obviously the UV from the sun is much more intense. Say you have the plants indoors under a common bulb for a week, and then u reposition them under the sun; the sprouts may die. It's a chance that u gotta be willing take. Make sure if you take them indoors, that u match the sun's light cycle. That will reduce the some possibility of them dieing.