Had to google the common name, sice it's so uncommon, lol
(cardamine lyrata) small pennywort like plant, I keep mine tied around a piece of wood as it can get messy when allowed to grow free form.
(Bacopa Carolina) easy for some, not so easy for others... never had this plants
(M brownei, I think) smells nice? gave mine away, it grew nicely when I had it :) pretty in its own way
(Hydrocotyle... something)I prefer this one floating :P
(" ") lovely plant, small leaves... if you have highlight the stems form a nice gradient, pink up to to green at the bottom...