Hi, I have a pair of juvenile clowns that have been in my tank for almost two weeks now and in another two weeks I plan to add a goby/pistol shrimp pair to my tank. I’ve been looking at fish for later in after the goby and had the question of if it would actually be safe for my juvenile clowns to add another fish? A possum wrasse was one of the fish I was looking at adding possibly. But don’t want my clowns to be too small to defend themselves or if something else I should watch for when introducing new fish in with my juvenile clowns. Thanks!