Sure is a nice one. I remember seeing that a couple months back, but forgot to ask about it. I don't know all that much about plant species, but I thought Ludwigia had to be planted, or am I incorrect and it can be attached to objects to grow in the water column? Is it just certain species of Ludwigia? I had some stems of L. Repens floating and it could grow a few new leaves, but the old leaves would wilt (never tried attaching upright in water column).
By the way, anyone have any of the Ludwigia sp. Mini Super Red like shown in the video?