so can some one explain how to do it,what kind of sand,i have play sand,how long to put it to cycle,when to add a cup of live sand,i have a establish tank,which i want to do a 55gal tank,im trying to cycle some home made rocks that i made,so can i just put the play sand in,or what are the steps.thanks.Sand will come live in time from your rock, But if you get some real live sand like a cup or two from a established tank will help. when sand is dead you may see more outbeaks of algae on the sand.