I have never really looked into keeping a live planted tank before, but after seeing some pics of forum members, I realize how beautiful they can be. My (dumb) question is: What do I need to have a simple planted tank? aka: What is required with them that is different from keeping a non-live planted tank (lights, chemicals, substrate, etc.). Sorry for the very "newbie" question, but like I said I was never interested before so I never paid attention to them...... Thanks