Pretty sure "crud" does work its way into sand....if nothing else, from fish nibbling at it and pushing it in. A major reason DSB tanks work.
True, but I would wager the majority of every day folks don't vac after every feeding.
Still no response on my comment on the video.![]()
Absolutely true...but it doesn't need to be with fish pushing it in and natural decay. :dance2:But it's not quicksand either.![]()