Hi i currently have a 55 gallon aquarium with 3 bala sharks,2 angelfish,2 glo fish,1 pleco and 1 swordtail. Anyway I want to add plants to this aquarium, but I don't even know where to begin and was looking for a list on what i need, I currently have gravel as my substrate and plan on replacing it with whatever I need to. I was actually looking at ECO-Complete substrate to replace it with. Basically I need guidance on what kind of lights to use and what kind of substrate and pretty much everything. Thanks in advance to anyone who looks this over and helps out.