I'm in the middle of cycling my first ever saltwater tank, but now I'm thinking I chose the wrong sand for what livestock I wanted. I really wanted a yellow watchman goby but I went with the Carib-Sea Arag-Alive Bimini Pink sand which has shells in it that I didn't notice in the bag. Would I be able to keep a watchman on this sand or should I just remove it from my wishlist? I really want a goby or blenny in the tank, are there any that are not sand sifting? Are watchman smart enough to spit out stuff that they can't sift? Thanks in advance!