I want to add real plants to my now fully started up tank. I feel it would look a lot better and more healthy at the same time. I have Mini rocks (kind of like turtle gravel) and green aquarium gravel mixed for the bottom of my tank. My lights are standard full spectrum lighting. I dont have sand or substrate. How can i do this if possible at all and what are the basics for plant keeping??? i.e. extra food, clipping, ect. Thanks a lot!!