ok, ive had blue and white gravel for a LONG time now(haha i was a kid when i got it) and im 15 now, and I absolutely love the way sand looks. i have a couple concerns that would be greatly appreciated answered. one, can plecos and bottom feeders still live if theres sand?? can i change it out today if i do a partial water removal and jsut remove all the plants and and decor and dump the sand in, but will it cause it to cloud the water?and 3, how in the world do you clean sand? i use a gravel vaccum thing, but thats for gravel, so how do you clean it? haha lot of questions but thanks for answering in advance!!