My Pleco got stuck inside the "rock-cave" last week. He was bent in half and struggling. He has a large scrape that looks like it is shedding and the tank is starting to smell. The biggest concern is that now he has this continuous white string-like think coming out of his underbelly or bowel area?? He has never had this before. Can anyone tell me what might be wrong with him and what I can do? Also, will his scrape heal by itself?