lol, I'm always reminded of where my Columbians come from when I see them eat and see their little teeth.
Generally speaking there just isn't a lot of diversity for tetra's, like there is for say cichlids. They all breed in pretty much the same way, eat close to the same foods and so on. Not trying to come down on you or anything
The general FW forum is as good of a place as any for tetra discussions.