Yes take the lower leaves off, put the pot somewhere where it doesn't get direct sunlight and put 1/2 a pop bottle over it. Have a look here <http://www.ukaps.org/forum/threads/can-anyone-identify-this-fern-please.37041/#post-399630>.So you say take off the bottom leaves and just stick them in some garden compost?
The top one is definitely Pogostemon helferi. The bottom one isn't a Hygrophila sp., because they have opposite leaves. Your plant has alternate leaves.Top one is Pogostemon Helferi, bottom one looks like a Hygrophila species, perhaps Polysperma?
Looking at the shoot architecture (the leaves are in a spiral) that is a <"definite possibility">.Heteranthera zosterifolia