Welcome mtam12, good save! I have been using 3gal bags but the guys are right about the 5gal growing bigger plants. Most of my plants have been between 20-30in with 15-35gr yeild. I just started this spring and have learned something from each grow. This site is the best for good info and the people here really want to help. Don't worry about the wife, once you start smoking your own the old pencil will stay full of lead and she will be on the team. Good luck.