Well it's official, I'm taking the plunge into the world of sand! That 5 gallon has been tormenting me by sitting empty so I've decided to put it to work for me. Gonna make it a grow-out tank for my Endler fry. Bought some black sand at the LFS yesterday and am getting ready to start washing it now. Of course pics will soon follow I'm just hoping the black sand turns out better than black gravel did. I'm concerned about the color leaching out but I just love the way black substrate looks. Has anyone else had a problem with this?