He’s always hung out in that corner. He obviously comes out from time to time and does swim around, but he spends a majority of his time there. It is a very odd situation and I have done a lot of research on it without a clear conclusion so I wanted to see what reef2reef had to say. No need to apologize either!Agree - however the 'hosting the thermometer' - is odd for a clown (*unless being bullied into that corner). Weill just have to see. I'm not sure what bacteria it would be - without an underlying injury. If the fish was septic - with random lesions appearing - IMHO - that would not last long. Sorry to the OP - for a debate - however - this is not a clear issue