I have had my pea puffer for about a week now and he has been very energetic. But now I have noticed he has been hanging around the top of the tank and it looks like he isnt moving or alive which he is. Could he possibly be sick or just resting?
How long has your tank been set up and what size tank do you have.? Test your water to seeif there is any ammonia or nitrites. Usually when a fish hangs around the top they could be gasping for air if the water is off. Any pics?