It's H.C. or Dwarf Babies' Tears...
I don't think most people could get it to carpet since it requires high light to do that[but could also be a regular stem plant in lower light] and it requires Co2 for it to really reach it's potential[it grows mostly Emersed in the wild]. I got sick of mine and gave it to the goldfish, so I see bits floating here and there I put in the 1.5gal[with 15W over it].
I don't think most people could get it to carpet since it requires high light to do that[but could also be a regular stem plant in lower light] and it requires Co2 for it to really reach it's potential[it grows mostly Emersed in the wild]. I got sick of mine and gave it to the goldfish, so I see bits floating here and there I put in the 1.5gal[with 15W over it].