Has anyone ever noticed a skunk* cleaner shrimp getting aggressive towards fish? Mine was chasing my mandarin goby away from the rock work a few days ago. The goby was in an area the shrimp is not usually in. I have never noticed a shrimp getting aggressive or chasing fish away. He did molt about four days later. Does molting cause aggression or territorial behavior in shrimp? The mandarin is about a third the size of the shrimp.