1. Red tiger lotus.
2. Ludwigia repens x arcuata or some hybrid (Palustris hybrids are really hard to ID so someone with a better eye can help)
3. C. wendtii "green"
4. C. parva
5. Not a rotala but another ludwigia. Possibly palustris. Hygrophila polysperma 'sunset' illegal to ship across state lines
6. C. parva in another growth form.
Next time please rotate your pictures.