Good morning. I’ve had my bamboo catshark for about 8 months and he’s been great. Last 3 days he hasn’t eaten and is breathing very hard, while uncontrollably wiggling body in swim motion. All of my other fish are doing great. I’ve picked the shark up and checked for goiter, nothing. No spots or signs of disease. I don’t know what to do and fear the worst. See video attached. Thank you.