The Puffer Forum

I've had a Dragon Puffer for almost a month now, and he usually hangs out on the bottom. He only really swims around when my hand is in the tank moving rocks/plants/cleaning and when feeding. For the past 2 or 3 days hes been at the surface of the water and appears to be sucking in air. Should I be concerned?

Moving to the Hospital Forum, so you can answer all the questions in red.