Anyone have any experience with the new SeaChem Flourite black snad and loaches? I want to set up a 20 gallon long with kuhlis, and this is the substrate I'd like to use. I just want to make sure its not too sharp or rough.
http://www.seachem.com/Products/product_pages/FlouriteBlackSand.html
http://www.seachem.com/Products/product_pages/FlouriteBlackSand.html