I also have a very small nano so cleaning the glass and blowing some rocks off only takes a few minutes. Snow Ingredients are cheap and it’s easy. I do a pretty good cleaning to get everything swirling before I start.Maybe I have to give this coral snow a go. It's something I haven't tried at all. I rarely clean the glass though, it looks slightly messy, but only in close up photos. Snails take care of about 80% of it.