spiny box puffer

Look familiar? I think I need to set up a quarantine tank? Any experience/ recommendations on what to do? He is eating. A little stressed swimming pattern. He is in a predator tank but I don’t really ever see anyone bothering him Everyone else in the tank is healthy. This spiny box puffer is...

Over the course of the last couple of days, my spiny box puffer seems to have a worm over his eye. Would a freshwater dip help rid him of it? Any other suggestions as to what to do? The tank is a 220 predator FOWLR. There haven’t been any new additions to the tank for about a month. Water...