Keep up the work! Like shaunyboy said, try not to move then too much it will stress them out. Once they grow their first leaves they usally start to rocket up. Let me get this right your babys are 3 weeks (in PIC)? Here is a pic of mine, they are also 2 weeks. Maybe mine are just super babies? you should reall go to walmart and pick up like one or two CFL's 42watt! They do wonders, cheap as hell too $8.00!