I have two Boesemani Rainbow fisesh with same issue as seen on picture. I could not find the exact disease on the website. It looks like ulcer but I am not 100% sure. The fishes are getting skinny but eating normally without any problem. I treated with human antibiotic and melafix but no success. They have been like this for two months started just one spot. Now there are many. The disease is not contiguous because my other community fishes are fine. I place them in my QT tank with other two healthy fishes for a while and my healthy fishes are doing fine and did not get the disease. Please help me to determine type of disease and treatment because they deserve to leave if I can treat them, no matter how much it is going to cost me. Thanks
