First one looks to have two species, one on left looks like egera with rotatal indica on the right. Second photo not sure about, third looks to be cobomba, last not sure about.
The first one is difficult to say the one on the right is possible egeria the one on the left some sort of rotala may be Rotala macrandra 'Green',the second looks like a Eusteralis sp. the third Limnophila aquatica or mauritiana and the last is Ammania senegalensis or gracilis. hope this helps.