4. Some type of Val?
5. This looks like Rotala rotundifolia or even dwarf bonsai (http://www.plantedtank.net/forums/my...ania_sp_Bonsai). Rotala and dwarf bonsai are often mistaken for each other so you might have to do a little more research! Rotala turns red under high light and yours might be green from low-light from where you got it.