I know this is a little late, but no one answered your lighting question. Those 42W bulbs @ Wal Mart are for flowering. They carry the ones for veg in lower watts @ my local Wal Mart. For veg stage, you should use the blue packs which have a color temp of 6500K. If it doesn't say 6500k, don't assume that they are. Not that you can't grow them with those, but I just wanted to clarify for future trips to Wal Mart