Yeh i know what you mean man.I would put the soil grow directly under the light as if you out the fl/dr under there it may raise the res temps to high and br make allowances for the ppp soil grow as they will have to be spread out as they grow as they are from seed. So the bigger they get then you may need more space .What is the dimensions of your space i know its 10x 4 but in width/length and hight?hears the pics of the mums i have and the ak at 15 days 12/12.