Plant is flowering but still has messed up leaves, i'm noob

For about a week now my plant has had leave problems, and it just started randomly flowering with a 24/0 lighting about three days ago, i now switched it too 12/12 i'm using two 40w t5 flouresent bulbs 4' long and it sits about 3in away from the top of the plant. The plant is about two feet high and the soil has a ph of 6.5. the soil i'm using is miracle grow moisture control potting mix nitrogen .21%,phosphate .07%, potash .14%, iron .10%, i'm reading that off the back of the bag. I moved it into a bigger pot about a week ago when the leaves where bad, and they seemed to have gotten a little worse but not much. The room stays at 75degreesF. The leaves have a bit of a crisp to them also, when should i be watering i've been hearing if that 2in into the soil is dry then i can water? i never know how much to water either. Their is a fan ventalating the room also. I have Jobes Fertilizer spikes that have 8% N, Phospate (9%), Potash (12%), should i be using one of them or no? Can you tell me how to get my plant healthy. This is my first grow

omg! bigger pot more light, water and love, new seeds maybe
please read the basics on here

flush your plant with water looks like you got nutrient burns happening then get her back in veg poor girl needs to grow as well lower your lights shes stretched like the jolly green giant

they look burnt maybe ph too. try ease up on ferts. and if you're planning on flowering with a single 4ft fluro, you would MAYBE get a joint, probably not lol

buy a tent, hydro setup (maybe not just yet eh), 600w mh + hps for flower, decent cuttings/seeds and start again dude, dont risk the bust for a pencil

i have two 4' lights? should i flush and then just leave it with no fert? And what timing should i go?

Daaaamn looks like some burns. I havent seen white burns but it looks either pH or nutrient related. Try flushing them. But i'd look out because 24/0 light time results in hermies.

what timing should i switch too and when would i switch it?

yes flush them with water like a 6.3 ph and flush them real good make sure all the nutrients are out then leave it on 18 /6 lighting cycle
water when dirt looks real dry use the weight method when shes light u water again and slowly introduce nutrients waterin should be like every 5 to 6 days

do you have a good link so i can learn how to flush it, ive never done that before.

bullshit, 24/0 doesnt cause hermies. anyway even with 2 40wtubes, plant is too big to flower. they are long tubes dissipating all this energy all over really if you get a lil joint or 2 from the top and pistils it would be good

do you got a ph meter if so then just get a 20 litre pail fill it up lower your ph to like 6.3 use luke warm water or buy distilled water and pour it into your bucket till you see completely clear water coming out then do it again 1/2 hr later then put it on 18 /6 lower lights and let her repair her self water again in a week or so just water then introduce nutrients back

DrFevers got the right idea, flush em.