damn dude my jaw droped for a second i'm sure others will get a kick out of that i would really wash that sand or it will cloud your tank pretty bad just put the sand in a bucket or something and fill it up with some water stur the sand up really good and let the heavy part settle and pour off the rest do the till when you stir it the water stays pretty clean don't worrie you won't be able to rinse it totally clean but at least rinse it a few times
also make sure the intake for your power filters are raised around 3''-4'' above the sand or it will get sucked up and that can be pretty bad for for the filter
