i have a 50 gallon tank with a 55 gallon
sump. im running a 3 inch deep sand bed. i have 45 lbs of liverock in the tank. litteraly hundreds of caves and thousands of hiding places. tank inhabitants include 1 strawberry dottyback, 2 mated percula clown fish, 1 green clown goby ,1 emerald crab, and a basic clean up crew. i would like to add a twin spot goby as a sand sifter, but i dont know if it will get along with my green clown goby. i say this cause everywhere says not to put gobies together. i want a sand sifting animal, but i dont trust ANY starfish so thats not an option. i really like the looks of the twin spot, but im open to suggestions. thanks all.