Day 4! Good progress I think.

So today is the end of day four and they have started to come up in a bit of a burst. I'm really excited about how they are coming. I do have a question. When I came out to check on them a couple of the leaves started to wilt. After reading cultivation book by Jorge Cervantes last night I realize there's a little more that goes into this than I thought. I'm learning quickly though. If there is any help as to the wilt it would be appreciated. I believe it's because the light was a little too close and the ventilation wasn't pumping in enough air (both I have fixed) I placed them about 15 inches from the light and it is a 250 watt bulb over four plants on a shelf. Two of the plants have shot up twice in size in just four days. It's the other two that are having the problem. Please help. Thanks