Once you have your planted tank going, its only natural to have some fish swimming around. Its the "final touch". I would think twice about those Pleco's though. They're going to eat your plants. When I turned my aquarium into a "planted" tank, my pleco had a field day with anything green I was putting in so I traded him in at the LFS. With a planted tank, I prefer Danios, Angels, Rainbows, Gouramis, Otos, Corys, and other community fish that wont dig up or otherwise damage the plants.