Have some monosolenium tenerum I can send, or a small offshoots of twisted vallis (sorry don't know the exact name, but it doesn't grow much bigger than say 30cm). Could also do some Ludwigia repens, java moss, hygrophilia polysperma or anubias barteri v. nana.

Should have said that the anubias, java moss and hygro come from a tank with ramshorns and MTS as tankmates, whereas the rest come from the tank with just MTS - both my tanks have duckweed.

EDIT: ALL TAKEN