Yeah, I guess that's why all the best planted tanks are really long and really shallow. The shallower they are, the easier it is for the light to reach the bottom. At least that's what my LFS guy told me. Also makes it easier to work in, too. But I know how you feel. They start out looking so nice and then after a month, they look really scraggly. >.< Goodness knows my 20g does.
Doesn't mopani have that bacteria for a longer time or something? I have been staying away from it.
It is a good present, the only bad thing is I will have to buys the lights as well. I think I am going for the red plant growth ones and a daylight one. The plant one will be in the back where most of the plants are.