I'm in the process of stocking my first SW tank. I was pretty excited of getting my first fish, a goby. Not sure what species yet but every goby I've seen in my LFS is best housed in a sand bottom tank (as far as liveaquaria indicates). Would it be too bad to have a goby such as a yellow watchman or Wheeler's Shrimp Goby in a coarser substrate? I use aragonite, its not super coarse but defenetely a lot coarser than the sand I use in my FW systems.