How do i fix?!?!?!?!

Bag seed. the leaves are dry and nasty looking. All i use is water and superthrive every three os so waterings. I water every 4-5 days. they are under cfls

You need to add some base nutrients. N-P-K ratio with a focus on N in the first veg stage, then switch to a high P and K fert to give the flowers the extra boost. Keep giving them the superthrive but add to the base nutrient.