Hi everyone. I am glad to have found this forum. I'm a bit frustrated at not being able to help my boy get better with all information from friends, Fish Dr. (tee hee) and net. So please bear with me. Lightening is an 8 month old betta. He is normally very happy swimming in his 2 gallon glass cookie jar with a heater annd a plant. Since early September appeared a dark brown almost black blotch on his side, with a white patch near it. Still very vivacious I made a medical tank: salt, bettafix, API stress coat and a piece of indian almond leaf. Never cured, but maybe a tad better. Still vivacious, put him back in his home. Since then he is lethargic, wont eat, clamped fins and doesn't like "dancing with the girls" anymore. That white/brown/black crap got worse and since is appearing on his other side(white) and there is browning on his dorsal fin. Lightening is now in a medical tank again, salt, stress coat, and bettafix. Yea I did say fish dr.. He indicated that the crap on his side was rub marks...this was before his temperament changed. I have had other fish enthusiasts look at Lightening - All the same comment: "What the creepers is that".... Your comments are greatly appreciated. I so dont want to loose him. I tried attaching a picture, but file was too large. I even cropped it!