Please tell me what this is and can I fix it. My nic hybrid had this once before and it healed itself. Looks like the intestines are coming out the anus. I have only ever seen it happen on this fish and it happened once before. Water quality is clear I do 50-70% WC every week. The fish is acting completely normal buzzing around the tank. She is afraid of my camera so it is hard to get a pic this is the best I could get.