Puffer fish ich or parasite

[Why so serious]

Please help puffer fish idk what is on its fin I gave it a fresh water dip

 

[Jay Hemdal Verified Community Expert]

Yes, that could well be ich. Some history of the tank and the fish is helpful though, take a look at this link:

https://www.reef2reef.com/threads/s...sease-treatment-and-diagnosis-section.775547/

Jay

 

[trevorhiller]

Very jealous of the fish, these guys are so cool. I hope you get him/her fixed up.