Hello. As I said on my itro thread, I am gathering some stuff for a 17,5lts tank. I am thinking about developing my aquascaper technics on this small tank, so that I can go t my 112lts (even though it is a small tank, it is larger I can get - space issue). I have been playing with the hardscape. My doubt now is... Should I add only Aquasoil, or should I add white decorative sand, making some kind 'stream'? I am sorry for the photos. I am still learning how to use my Nikon D50. Thanks for your help. (I am also sorry for my poor English...) Cheers.