I have a Hericthys Carpintis with swollen lips. He is acting fine I noticed this yesterday. They don't seen to be getting any worse or better. All fish in the tank have been in it for about 1.5 years. I added my large Jag 2 days ago because of tank problems but he is now gone. I am almost sure there was no lip locks from size difference. Any ideas & could it be contagious? I will try to get some pics up soon.