The handful of sand is to seed the nonlive sand with beneficial bacteria, anthropods, etc. Then, they multiply and it becomes live over time. Same thing with live and nonlive rocks. You can get a bunch of base rock and some smaller live rock and "seed'' your live rock. This a cheaper and more cost effective way of doing it although it does take longer. The sand you bought is not really live. And yes, unfortunately that was too much. My LFS sells it for about 45.00. It's okay. Live and learn.