yeah dont worry about your light, keep it higher up away from the babies, make sure you arent overheating them with UV. Keep them watered but not wet, try to reduce the difference between day and night temps to avoid your plant stretching upwards. it is often a consequence of temp fluctuations and so uneven turgor pressure that often leads our plants to reach up and get all lanky. You might also look at how plants see themselves and understand how and where they are. Plants measure ratios of light, full light and shade if you like. If the parts where the light measured is mostly in shade, then our plants will stretch to find good quality light. Once they are in this good light, they will stop :) Good luck
we are talking here about vDiff (day night temps) and Pr to PfR light (Phytochromes are red- and far-red light-reversible photoreceptors for photomorphogenesis in plants.)