Had my bullet goby about a week. I cant really tell but it may be getting skinny. I saw it filtering sand at the lfs and it has turned my 75 over at least once. I was just wondering if this is enough of a diet for him. I feed my fish and inverts prime frozen cubes, frozen mysis cubes, flakes, small pellets, and sinking pellets. I have only seen the bullet filter sand though. He doesn't seem to go for the food I add. What do you guys think?