Future things to think about; I don't see any movement of the plants, you should have some air movement. Too many plants for the tent, if they start growing like they should they will be crowding each other. And you can't easily check the weight of the pots to see if they are in need of water because they are so crowded. Don't go by the color of the coco on top as to whether they need water, lift the pot to see if it's heavy or light to determine if they need water.
Also, even though you said you have those lights dialed back in watts, those leaves look bleached to me so I think you still have too much light, too many 650 watt lights for that much area.