i think if the problem is that you only overwatered, have some discipline and don't water so often. how much do you water daily? with the wattage you have, you definitely do not need to be watering every day. with cfl's you can often easily do well with watering only once a week. those kids dont look so well, if you have access to more clones id say your best best would be to set those off to the side somewhere and grow out some new clones. those ones you have are already in shock so they wont yield as much. if you dont know the pH of your water, just go to the store and pick up some distilled water to feed with. its not hopeless though... just don't water so much!