Hello everyone! Took a long break from having tanks, and am setting up a 10gal. I want to have a section of sand, either in a pathway type or just an area up front. My LFS has superfine sand and I am concerned it will migrate into whatever substrate I decide on for the back areas. Would it be better to use a divider between that and the planted sections in the back? I almost have a garden type wall vision in my head, but I have seen tanks without the divider as well. Anyways, divider yes or no? What have you used that worked?