Your babies are growing way way way to slow. My girls were 3 times that size at 2 weeks. What kind of soil are you using? I'm using Miracle Grow: moister Control soil with 3 month plant food.
I planted the babies as seeds in miracle grow pots and once they were about 4 days old I transplanted to 10 inch pots and they are pretty big now, check my grow journal.
Its good stuff but I think next go around I'm not going to use it because it tends to burn your plants and there is nothing you can do about it because its got all that stuff premixed into it.
How much light are you using for them and how often are you watering?
ohhh no wonder , from that last pic draston it shows how close the light is , mines nowhere near that!
i'll try that for aweek to see the changes but also mine are birds eye view so they look smaller anyway but its just the leafs that dont look all that in mine the height looks the same