Sand

[mypapercuthurts]

what do you do to sand to get it fit for your aquarium boil it or nothing

 

[Teelie]

Wash it. A lot. Wash it until the water is clear and then wash it a few more times to be sure. Make sure you sift the sand a lot as well to get as much dust and small particles out as possible.

 

[The-Wolf]

again another answer found using the search button
http/www.fishforums.net/index.php?showtopic=71597