Ok, Actually that sand is the sand I used when I started my 5g tank. I didn't have any problems with it, but I also used a small piece of Live rock that I bought from my LFS just to be sure. I thought you were referring to actual dry sand. The Natures Ocean stuff is a little moist in the bag, and some still have a little water in it. And don't worry about asking questions, we all had them when we started, just make sure you have fun setting this up with your grandsons, and take lots of pictures of the process.