It seems like the left is cabomba, the middle mondo grass, and the right anacharis.
They shuold not be eaten.
To be honest, the mondo grass is not a true aquatic plant. However, some people have had it grow well, while others not. While I had it, it grew pretty easily. Anarchis should grow great in any light level. Cabomba is a little but more difficult but it shoiuld be fine.
Hope this helps