No experiance with floros. but with 400w mh at 3-4 weeks they are much larger. heres a pic.

http://boards.cannabis.com/attachmen...1&d=1148106978

If that pic dosent get enlarge. check my gro log in my signature below. 3rd page.
bob bobbinson Reviewed by bob bobbinson 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