Well, I have a type of Rotalia. I'm not sure if it's the same kind it looks a bit more narrow.
It's not the best picture if you'd like a better one I'd be more then happy to get one (sorry being LAZY at the moment). Don't mind the Barbs, lol it's ranging purple, red to green, it grows TALL and fairly quickly. If your interested in some then I don't mind trading something or if you want to buy some (just shipping cost) that's alright too. Sorry i'm not much help. Good luck!