I have a 55 gallon tropical community tank that I have been thinking about planting. I have several questions because I have never done a planted tank before. I have two 48" 40W lights in my overhead. Will plants grow with this bulb or do I have to get the special plant lighting? Also, I will probably have to change out the substrate and possibly add CO2. What is the sequence of events that I need to do to make sure that the inhabitants of my tank don't suffer if I do all of these changes? Any help would be appreciated. Thanks.