My plants have been sprouted 19 days. Topped above third node. 1st,2nd, and 3rd growth's topped. 1st,2nd&3rd fan leaves cut. My stems won't bend. It's not tall enough to either. Maybe total 5 inches. Moved light to around 24" (600MH) to promote stretching... Should I cut the lower growth's too? Thinking about twelve and twelve right around after a month... Opinions, comments?