look at ebay if money low an you can get 85w 105w cfl bulbs that just screw in but you can also get 150,200,an 300w cfl if your worried about bulbs being delivered etc the first 3 bulbs they sell in the photography bit also as you probably know try an stay in the range of 6,500k blue spectrum for veg an 2,700k red spectrum for when you switch to 12/12,
as other's have said about miricle grow it is quite harsh but there are few people on here that use it with great sucsess,if you start to get fruit flies etc comming out your soil cover the pot with about an inch of builders sand this will stop all nat larve fruit fly burrowing into your soil an escaping,
if your going to carry on using miricle grow feed dilute it to 3/4 strength ie if it say 4 ml per litre you 1ml an so on an see how the plants respond,if they start to yellow increase to 1/2 recommended dosage,
also when you feed, say you fed them today saturday just water them for the next 2 times an the feed them again an keep repeating this cycle but you only feed/water when it starts to dry out if you pick the pot up an its light water or feed,best to feel the weight of pot when been watetred or fed to get an idea of how heavy it is,or you can stick your fingers in soil about 2" if it feels moist not wet there ok if it feels dry water/feed,
what ever you do do not feed every time you go to water or you will burn the shit out of them increase chances of hermieing on you etc etc unnecessary stress,an i would deff increase the amount of light you have get a few cfl bulbs 42w ones or higher,
hope it helps abit if i am wrong on anything please correct me i know i spelt some words wrong my english grammer punctuation an pronounciation is shit