I would have to say that this is by far the best planted tank I have ever seen, and I have seen a fair few over the years, that and having worked in a tropical fish store for three years aided the endeavor. Nevertheless, I have a question, one I ask each time I see the stuff, yet never get an answer. The lovely green flora covering the tank bottom, much like a grass, what is it? I ask because I have never seen it, in the flesh, so to speak, here in Australia and I'm starting to think it is maybe unavailable.