the last fish introduced was the foxface and catshark, i put them in at the same time. i treated him for 2 weeks prior to that for the ich. and reintroduced him to my main tank the same time i put the cat shark and foxface in. i believe he got it from when i put a goat fish and yellow tang in. at that time my nitrates were really high and the tang did not survive but a day and the goat fish made it a couple of weeks. at that time i also noticed the white specs on the puffer and treated with mardels coppersafe as well as with maracyn. they seemed to go away in the 2 weeks he was in the QT
. however shortly after reintroduced he seemed to get the slime coat back. Every now and again i noticed him breathing hard and my mom recently saw him puffed up in the tank and he puffed up when i was reacclimating him to my main tank as well.