Just recieved my Heniochus Butterflyfish from Foster and Smiths. I open the bag and hes upside down breathing fast. I acclimated him and put him in QT. He swam around a little upside down now hes just resting still upside down against a piece of live rock. he is still breathing fast. I thought I saw a thread here once about shipped fish getting air trapped in them and not being able to right themselves. Anybody heard of this?