hi! i'm cultiving a new plant indoor , i recently transplanted it in a bigger Vase. Considering i use a lamp mh 250w (with an all mix soil) and i don't want (like in the past) the plant grow too in height , just to see even with the LST, just the the higher parts to receive the right amount of light, how much the plant should be growing and be tall (considering the lamp isn't too strong)? thank you