Cabomba and large-leaved swords need a lot of light. otherwise, cabomba's tiny leaves will start to fall off and rot in your water. i had low to moderate light (1-2 watts per gallon) and the amazon swords were growing with paper-thin, see through leaves.
Anachris usually grows TOO fast, for most people. It needs very little light and almost no fertilizers, so if that wasn't working for you, other plants probably won't either. at least not with your current setup.