Quick question these 4 larger plants are 3 weeks old from seed should they be bigger? Have I been keeping my light to low?

I have a T5 sun system 2ft 4 bulb tray light 2000lummes per bulb 2 warm 2 cold. I have a good feeling I over feed them or maybe have been watering too much. As I am new

And one other quick this seedling is it normal for the first leaves to get that big I haven't given it any thing but plan water. and that is a mircle grow flower mix from HOmedepot

Any help would be awsome. I have the light 7 to 8 inches away and they are about 4 inces tall.

Thanks for any help

kd_special
kdspecial Reviewed by kdspecial on . Could these plants be Bigger? Quick question these 4 larger plants are 3 weeks old from seed should they be bigger? Have I been keeping my light to low? I have a T5 sun system 2ft 4 bulb tray light 2000lummes per bulb 2 warm 2 cold. I have a good feeling I over feed them or maybe have been watering too much. As I am new And one other quick this seedling is it normal for the first leaves to get that big I haven't given it any thing but plan water. and that is a mircle grow flower mix from HOmedepot Any help would Rating: 5