sometimes plants seem like they not growing but are just makin more roots an then they take off...if the soil is moist and not dryin out dont kill it tryna add more water...if u been using some nutes maybe cut back on them if ur gettin yellow then it may need some nutes..if the plants stems are big as match sticks u could prolly trans plant em now..add perlite or compost to ur new plots soil so the soil dont get hard...GL