Hello, first timer and i was wondring i had 3 26 watt cfls on 2 plants they stretched at the begening they grew very slow. now they have developed brown and yellow spots. i bout a new 400 watt HPS light with reflector with a converter. how far away should the lights be? there about 2 weeks. also what are good cheap nutrients, lil tight on money right now .sorrry but no picks, have no camera. any help would be great.