Bala shark mouth stuck open and isn't swimming right

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Aquarium Advice Newbie
Oct 31, 2023
Hello! We got a Bala shark on Saturday (October 28th). Today we noticed that his mouth is stuck open and looks a little funny and he seems to be sinking. He will slowly sink almost to the bottom and then swim back up. I haven't tested the water but all the other fish are healthy. He's in a seventy-five gallon tank.


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Dear Andy Sagar, thank you. Yesterday when I looked I didn't see anything but I think that was the problem because he's back to normal today.
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