I have a 30 Gallon SW setup with juvenline clown, Blue Tang, Royal Gramma, Cleaner Shrimp. I recently added a fire goby which I thought was a peaceful addition. This may be the case except for the odd quarrel with my beloved Blue Tang. Has anyone seen this type of aggression before? Should i evict this meanie or will it (and my hippotang) eventually get used to each other and their surroundings?