Quote Originally Posted by rocketeer View Post
... I now believe that a DSB turns into a toxic nightmare over time, at any depth.....
fwiw, i have had my tank up since nov. of 2005 with the 8" DSB in the fuge and do not have any algae issues. i did have issues with the 3" sand bed in the display and those went away when i took out all but 1" there.