Is there a level of emerald crab aggression that is acceptable or do you get them out once they start swiping at your fish? I've noticed lately that my emerald crab is coming out from his rocks ALOT. Even dancing out on the sand bed at times. He is not new the tank, but his attitude seems to be. I've noticed more and more that he and my lawnmower blenny butt heads a lot. Neither one wants to back down and they each take a few swipes at each other during the confrontations. This seems to happen mostly during feeding times, which makes sense. The emerald will also take swipes at other fish but they just swim away so it isn't as concerning. I'm interesting in what others would think about this interactions. Is there a certain level of this that is acceptable to you? Is it completely normal? or would you start looking into rehoming one of them? Thanks!