I know this has been covered on other topics but still worried. I have two Angel fish. They mostly they swim together and sometimes pick at each other. The last few days the larger one is just going mad. Picking, chasing, lip locking the smaller one. I created a new hiding place and the smaller is using it but the large one goes mad trying to get into it. Nothing else in tank but that's because the larger Angel fish killed my Honey Gourami. No issues for months. Any advice?