I was about to go out and buy some aragonite sand this morning for a Tanganyikan shell dweller tank when I suddenly had the idea to start a South American Tetra setup. In a Tanganyikan tank I can't have too many plants, but I love the shell dwellers way of life. They're so interesting! On the other hand, I absolutely adore planted tanks, but I would have to pay for another Co2 setup, ferts, etc, etc. What do you think? Which would you rather see in a journal?