Miracle Gro? I've heard alot of people say that it will kill it?

Are u sure? I've had her for about 18 days now and thimk shes doing well, got 3rd pair of leaves well on their way now. She is only under 2 x 20w energy savers but doing well i think! just using normal water aswell. I am going to start using nutes very soon tho! Can I get them to bud under uv flourescents? Do I really NEED sodium lights?