Previously i had gravel in my aquarium, and a few days ago i changed it to aquarium sand. My filter died and i had to purchase a new one, while it was out of commission some of the junk that was in the filter has settled on the sand and i am trying to find a way to get rid of it. I have done water changes and tried to get as much of the things from the aquarium out of the water but to no avail it kinda seems impossible any advice on how to get rid of this nagging problem would be great.