We have some sand we've siphoned out of our main (our maroon clown likes to play in it too much) and I don't care to keep it all. It is CaribSea aragonite sand. The sandbed has only been down since July and is well kept by my cucumbers so I'd call it fairly clean. It won't be enough to layer the bottom of a tank, but with all of the spaghetti worms, it will make nice seed sand for a new bed. I can probably fill a couple of gallon ziplocks.
You're welcome to it, but you do have to come and get it.
You're welcome to it, but you do have to come and get it.