Moby Dick

35 days old from sprout, had some issues with humidity and temps, dropping below 30% and above 90F respectively, I think that is the cause for my lower old leaves yellowing getting some crispy tips. Thought it was a nutrient issue at first, added some and haven’t seen a ton of change. Upper leaves and new growth still look good. Yesterday I lowered the light and turned it down to 50% to try and help with temp issues.