Im in my 2nd grow 3 plants just small seedling plants right now (1-2 in) but they dont seem to be growing like my first grow..granted this time im goin straight 12/12 with the lights instead of 24/0-18/6 ect ect..so they seem be growing slower which is understandable..but the leaves dont seem to be developing well..each plant has atleast one tiny leave(1/4) half yellowing..now they're only 6 days old so I'm not sure what the problem is..Im using a diffent soil this time its 0.6 0.9 0.6 so could they be lackin N..or could it be humiditiy..cuz I'm in a very hot climate state with no air conditioning..so the house ranges 80 - 90 degrees..I have a fan in the box but no cooling device...any help would be appreciated tried to take pictures but they came out blurry