Ive always thought sand looks much better, but I need an education on it. Is it suitable for a freshwater tank? Can I vaccume it the same way I do the rocks? How messy does it look when it needs to be cleaned? I vaccume my tank once a week but by the end of the week my rocks look noticiby dirty. How would the sand work? Would it clog up my cannister filter? ANd is it worth the hassell to change over from gravel? Any and all help would be most appreciated!!!