I came in to school to check on the fish the clownfish looks better since he had a little red spot which I think is a bite/shipping damage. But I noticed the wrasse was laying in the sand on his side breathing heavily. So I took him out after struggling to get him because he kept trying to swim away. I didn’t see any white spots on him and salinity and ammonia are fine. I called the company who donated them and within minutes the wrasse was dead after taking him out to try and bring him home to treat him. Any idea? No white spots. Maybe swim bladder? He looked fine yesterday. I know it’s hard to diagnose after a fish has died but I’m wondering if anyone has any idea all other fish are fine. It happened extremely quickly and I didn’t add any of the tank water to the tank. As soon as I put the wrasse in yesterday he took a nose dive into the sand and I didn’t see him until today and now he’s dead!