First time Indoor Grow

OK guys I'm starting at the beginning of week 5 so this one is only a few days after my last addition the the diary. I noticed the very first pistils so now we are in week 1 of flower. Punch 2 has dark greeb, curled down edges, maybe a nitrogen toxicity? I don't think I'm over watering, they didn't have water for 6 days when I noticed these symptoms. Punch 1 doesn't have the dark green edged fan leaves or the curling down, but there are some pale white spots and smudges at the ends of the fan leaves. Any ideas guys? I'm new to this so not 100% what is going on or how to fix. Any suggestions would be greatly appreciated. Thanks guys🎄