I would disagree. It seems to me that s/he wants to take sand from a local playground and use it in the aquarium. If you buy sand from a Home Depot or Lowes or garden center it is inert and just needs rinsing. If one attempts to take sand that has been exposed to "the great outdoors" boiling would be a minimum requirement to attempt to remove any bacteria or other organisms that may be in the sand. Personally, sand is so inexpensive (so long as you don't "need" exotic sand or buy from your LFS) that the risks of taking sand from "the wilds" is simply not near worth it IMO.There is no need to boil it as it is inert, all you have to do is wash it thoroughly until the water runs clear. Just make sure that the packaging states that it is for playpit use.