Inspectadeck looking nice bro , you got a fan on those plants yet? Make sure you do cuz even those lil cfl's can build up a lot of heat givin a few hours in a small space.

What kinda soil mix are you using? How often are you watering? And what is the closet temp? PH? Do u let your tap water sit out over night before you water (to rid the water of clorine)?. You havent started fertilizing yet have you? Im trying to diagnose what that secong plants problem is but its kinda hard to without more info. My guess is its a lil overwatered or maybe it is a little too hot. Maybe that foil/mylar is reflecting the heat from the lamp and making the leaves a little to warm. It doesent look like its nute burned the leaves,they show no signs of over-fertilization so I dont think you have fertilized yet (which is good). Make sure you get a fan in there asap.