I've kept various fish in various types of environments for many years, but I've never had live plants before. After a few years of keeping betas and goldfish in simple set-ups, I'm getting ready to start another, bigger tank, and I really want to stock it with live plants. Problem is, I don't even know where to start. Are there any books or websites that are widely used, reliable, and beginner friendly? Are there any plants that are good for beginners? Any that I should stay away from? Are there any reliable websites for purchasing plants? I have a 20 gallon tank, and I am planning on Danio, Gourami, Hatchet Fish, and Khuli Loaches, to start out with. Thanks in advance for any advice you can offer a semi-newbie!