Your Lights are not right, you want lights high in the BLUE spectrum for Vegitation and Red for Flowering, you will get a crappy yeald, like a joint or 2 from thoes if you dont use a High Pressure Sodium light to flower with, and a light high in the blue spec. for growth, you have allready thrown the plants off and hinderd there growth by not keeping the light on 24/7 allways keep the lights on 24 hours a day when you are veging they dont need dark at all beause they have everything they need to survive constantly, they dont need to rest. they are very very very small for the age of the Plants, 52 days damn.. my plants are only alittle over 1 month old 22 days younger than yours, compare my pics i have attatched.