Okay, so I need some help please. I recently purchased a valentini puffer which I put in my tank on Friday (9/12). He was added to a tank with CUC, 2 clowns, and a yellow watchman goby. He seemed completely fine at first but by Saturday night he was swimming erratically at times and laying in rocks at other times. On Sunday morning he was dead. I will include some photos to see if anyone has ideas. This is the 2nd valentini I have lost. All water parameters were in check at the time.

