I have a 55 gallon saltwater with 2 gsps, tomato clown, mono sebae, blue yellowtail damsel, and saddleback fugu they have gotten along for a couple of months now until around 8 -9 pm last night where the fugu went crazy and attacked and severely damaged one of the gsps I turned off the lights and put in a lot of shrimp to see if he would make it to the morning he did and is not floating but won’t eat any suggestions on what to do.