White Widow Auto / Neues Zelt

WhiteWidowmaker Hey there, we're currently testing out our new grow tent with a new light, but for some reason, I haven't been too happy with what's happening in the tent for the last three days. The plants (except for one) aren't really growing, some look a bit droopy, are turning yellow, and one seems sick. HELP I also posted a question about this online, but I can't find the reply button to provide additional info. That's why I created this diary. Two of the plants are in week 5 and four are in week 4. Unfortunately, only 2 of the first 6 seeds germinated, so we had to order more, and the plants aren't all in the same week. The lower leaves are now turning yellow on several of them, the second plant in week 5 looks kind of droopy and sickly, and one plant in week 4 is getting rust spots on a leaf (last photo, hard to see).