I have added many bags of live sand to mine,and others tanks,This is the easiest way...Wipe the outside of the bag to remove any dust and dirt,,,Carefully open the top of the bag with a sissors or razor blade,,,Then put the whole bag into the water(tank),,turn it upside down and shake it.Once the sand starts comming out you can move the bag around to dump it where you want it.This methode wirks remarkably well,and you will be left with an empty bag when done.Not one grain of sand will be left in the bag...Plus clouding will be at a minimum...But this method will only work with WET packed LiVE SAND.Dry sand is another story...