newbie, can someone help me out on what to do here.

so i have this first plant on 9 weeks following the foxfarm chart with foxfam ferts. i wanna change the plants to 12/12 in a few days. why are the small growing leaves falling off and curling and i am also getting brown tips. can someone tell me what plant one looks like it has.


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this is plant 2 its growing nice and big but its curling up on me. i thought it was because over fert so i flushed it for a week and it still curling. what should i do with this one ?

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plants look good and healthy. they will grow about 3 time the size they are in flower. hope you got plenty of hieght room, they are going to be big. i would trim those bottom branchest off about a 1/4 the way up or so, let them sit for a week then go to 12/12 lighting, for the fisrt week use alittle veg nute and flower nutes lightly, after that you can just use your flower nutes, at 1/8 to 1/4 strieght, and work your way up. only water every 3 days, and only use nutes on every 3rd watering. ph adjusting your water to 6.3, the bottom branchest wont produce much so trimming them will put all growth to the top of plants. they are a waist of energy for the plant so cut them. if it is a good strain you can, use them branchest for clones. that what i do. looks like you have a little nut burn but it not bad. just back off on the nutes a little bit and your be fine.

thanks man, when i cut those bottom branches do i have to take action right away or can i leave them on the side until i am ready to plant more, because i need to keep the room dark on 12/12. i also hope its not gonna stress my plant by trimming. by the way my ph is a little low and i have been putting a teaspoon of organic espoma lime in a gallon of water and watering like that. that should be alright to set the ph up right ?