I am using a 2'x 2' box. i stappled aluminum foil to the box all on the inside. i have a small fan on top, and i dont know what kind of lighting i should use. i started with a flourecent 150 watt light, then bought a 250 watt heat lamp ( that mad my sprout start to shrivel up,) so now im just using a 40 watt flourecent soft white household light. i know i should probably get a HPS or something, but they are expensive, i need a cheap alternative that i can buy at walmart or a general goods store. any other advice is welcome.