Quote Originally Posted by caferacermike
Another note to Mr. Cool's reply would be that decorative sand beds are best at around 1 1/2" or less since they can be stirred and exposed easily by strong currents. DSB begin working out over 4" deep. It's that space between 2"-4" where wastes are trapped but not processed.
I agree, from what I have read, that is exactly on point. Save the dsb for your fuge! I have black and white sand in my fuge and it looks super sweet!

Jorge, I would put it in some buckets and wash it. If at all possible, do one side of the tank at a time, and over a period of a few weeks. That should also help in determining if the sand is your problem, and not something else.