I have tried researching loads to find out what this is in my oscars mouth. Please note i brought this fish yesterday from a fish shop. Today with opening her mouth ive seen like red long lesions or tumors im just really not sure what they are. I need to treat her but cant find out whats even wrong to treat her. She also has what look like holes on her head they arent open wounds they more like dents i suppose. Im assuming that hole in the head disease which i know how to treat and have started that treatment today. I really dont want to loose her can anyone please help and tell me what these are please.