We would need more details to understand what the problems are.

When the plants first sprout they grow a couple of inches pretty quickly and then start focusing on growing the first sets of 'real' leaves.

A few hours day of direct daylight is enough in the beginning when they are so small. What are your pot sizes ? Be sure you give them good space to grow, dirt is cheap...

Check out my indoor grow from the beginning and you should get enough info. It's on here under, 'indoor growing' and its called 'testing the Pro-Grow 260'. You should get all the info you need in there.

And by the way, you never use nutes until at least the 3rd to 4th week and even then the nutes will be diluted. The plants can't handle that when they are so young. You will burn them.

Take care.