I recently got a blue hippo Tang and put him in my tank 3 days ago. Since then, hes killed my skunk cleaner shramp. And now he has killed my diamond. Goby or at least is attacking. My diamond govy and my diamond. Goby is playing dead or acting like hes dead. What should I do? Not only that, the Tang was a $100. And it keeps getting attacked by my pistol shrimp because it won't stay out of its hole.



