i have a couple of mothers (my first ones) in a four foot high tent. they are constently touching the light and i keep having to chop them. they are not a pretty sight any more. I have taken a couple of clones from each mother and plan to make them mothers. they have just started to show roots. How can i keep these new mothers shorter than the 4 foot space? is this a common problem? is it just something i have to deal with? is 4 foot just to small? please some advice?