After several failed attempts to get and grow different forms of red Aldrovanda, I found someone in the states who was selling these plants, from Kimberly originally if I remember correctly. I do have a few others that are on life support to doing ok-ish, but these so far are doing the best. Recently moved a couple to a brighter area, and they are beginning to color up. At first last year they turned green and stayed that way. It is a bit hard to get a pic in the water, so I put them in a white yogurt container. Pics not so good, but you get the idea.
Notice the flowers/seedpods as well.