Thank you! I was so worried. Upgrading from a 32 gallon biocube. When people came to help set up. We realized that we only had one bag of fuji pink sand. I went out and purchased the only sand that the nearest store had. It cleared in one day however, when I tried to even out the sand the next day it got cloudy. Today it is clear and I am afraid to touch the sand. I will get the 10micron felt filter socks. Where can I purchase them/