I don't know the first one but the 2nd one looks like java moss, 3rd one looks like bacopa carolinia and same with the 4th. Really easy plants to take care of, they both thrive in my low tech 16 gallon. Just lights and ferts really.
+1
These are bunched too close together they need to be separated
Caleb
Ludwigia sedioides I believe it's spelled.
Cha boi Jessie.