Yes you can but...... I have heard that the sand from there is notorious for being realy really dirty. In other words hard to clean before getting it in the tank. I have tried numerous different substrates and recently tried pool filter sand. A 50lb bag cost me only $10.00(cheapest substrate ever. As far as cleaning it. I used a cool-aid sized pitcher and filled it half way with sand. Then use a garden hose and turn water on full blast and push the nozzle all the way to the bottom. Gently stiring it till its cyrstal clear. Very easy to do and also make sure that the intake of any filter is appx 4 inchs from the sand. Good luck and post pics when your done