turn your light back up!!! use those lumens!!! but get some ventilation first. get some new soil, or look into some fertz. the soil that you have been growing in for several years, well...... those tomatoes have DRAINED that soil of nutrients. know what, screw that, buy new soil like NOW!!! and do some reading!!! search this site like crazy!!! you can get some Miracle Gro soil, not the "best" but it has fertz in it, so it is good for beginners, kinda fool proof if you will. but if you want those plants to not go to waste, then get new soil NOW!!!!