Originally Posted by
lion_crazz
Not to start a long debate or anything, but I am almost positive that puffers puffing in water is actually not harmful to them. It is used as a natural defense mechanism. It definitely becomes bad for them when they puff out of water, because then they suck in air and they get an air bubble in their swim bladder. This can be deadly for a puffer sometimes.
Judging from the first pic, he may have been protecting himself against the lion.
I would love to see more pics of your panda puffer when he not puffed. He looks very nice.
I have some pics on here in the photography section of him and the others in my tank