New fish not doing well

[CAd2Coral]

I got a new hog fish yesterday, he ate at the store and was swimming around. When I was acclimating him, he ate a brine shrimp and was doing well. When I put him in my tank, he went into an isolation box. This morning he is on his side breathing heavy and not moving. Any help would be appreciated. I check nitrate, ph and ammonia (0,7.6,0). I have a blenny and white tail tang in the tank and they are fine. I did have some Prazipro in the tank, but I added carbon today to help remove it in case that was the issue. The tank is 4 months old

 

[CAd2Coral]

Bp

 

[CAd2Coral]

Bump

 

[Tamberav]

I am not able to open the video on the device I’m on but will try and get this visible to others

#fishmedics

 

[CAd2Coral]

He is doing a lot better this morning, I think the carbon helped, he is moving around in his isolation box, do these fish scare easily or are they know for hard introductions?