Oh come on, don't be so harsh on the guy. I know the feeling of uncertainty when you're a first time grower, I am one myself. My limited advice would be to water them every 3 days or so, just stick a finger in the soil to check moisture, don't water if it's still moist about 1-2 inches from the surface. I've heard someone on this board say that they water every 3 days and feed nutes every other watering. Oh, and with nutes, use only about 1/4 of what the bottle says, normally less is more. Also buy a ph kit, and always test the water you're watering your plants with, make sure to keep the ph between 5.5 and 6.5, everyone has their magic number, but around 6 is ideal afaik.
I don't have enough experience to tell if your plants can get better, but they probably should (I hope they do) if you better your water/nuting schedule. And you need a better light set up probably, look into a cheap high pressure sodium (HPS) or metal halide (MH) lights, they can run between 100 and 200 bucks for a decent new one, check eBay maybe.
I wonder if you can transplant your plants at this point, it's best to only plant one per pot, maybe someone with more experience will be able to tell if they'll survive the shock. Also have an oscillating fan blowing at the tops of the plants, the resistance to wind (?) makes the stems stronger, as they would in nature. And consider investing in some extras such as ph/humidity/temp/total dissolved (tds) meters.
I hope this helps, best of luck!